765  
FPUS55 KTFX 152137  
ZFPTFX  
 
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
336 PM MDT SAT AUG 15 2026  
 
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION  
ARE FOR TONIGHT, SUNDAY, SUNDAY NIGHT, AND MONDAY.  
 
MTZ301-161000-  
EAST GLACIER PARK REGION-  
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,  
SAINT MARY, MARIAS PASS, AND LOGAN PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE IN THE  
EVENING THEN BECOMING PARTLY CLOUDY. PATCHY SMOKE. LOWS IN THE  
UPPER 40S. SOUTHEAST WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT.    
SUNDAY  
MOSTLY SUNNY. PATCHY SMOKE THROUGH THE DAY. A  
20 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 62 TO  
72. WEST WINDS 5 TO 15 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. PATCHY SMOKE. LOWS IN THE UPPER 40S. SOUTHWEST WINDS UP  
TO 10 MPH.    
MONDAY  
PARTLY SUNNY. HIGHS 60 TO 70. WEST WINDS UP TO 15 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE UPPER 40S. WEST WINDS  
UP TO 10 MPH.    
TUESDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 60 TO 68. CHANCE OF  
PRECIPITATION 50 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 62 TO 76. LOWS  
AROUND 50.    
FRIDAY NIGHT  
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
LOWS IN THE LOWER 50S. CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY  
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 63 TO 73. CHANCE OF PRECIPITATION 20 PERCENT.  
 
 
 
MTZ307-161000-  
SOUTHERN ROCKY MOUNTAIN FRONT-  
INCLUDING THE CITY OF ROGERS PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. PATCHY SMOKE IN THE EVENING. SLIGHT CHANCE OF  
THUNDERSTORMS IN THE EVENING. CHANCE OF RAIN SHOWERS LATE IN THE  
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS  
43 TO 49. SOUTHEAST WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 64 TO 74. WEST WINDS UP TO 10 MPH. GUSTS UP  
TO 25 MPH IN THE AFTERNOON.    
SUNDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 45 TO 51. WEST WINDS UP TO  
5 MPH. GUSTS UP TO 20 MPH IN THE EVENING.    
MONDAY  
PARTLY SUNNY. HIGHS 63 TO 73. WEST WINDS UP TO 10 MPH.  
GUSTS UP TO 25 MPH IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS 47 TO 53. WEST WINDS UP TO  
10 MPH. GUSTS UP TO 25 MPH IN THE EVENING.    
TUESDAY  
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 61 TO 71. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 44 TO 50.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 64 TO 79. LOWS  
45 TO 54.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS 50 TO 56. HIGHS 66 TO 76.  
 
 
 
MTZ302-161000-  
NORTHERN HIGH PLAINS-  
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE IN THE  
EVENING THEN BECOMING PARTLY CLOUDY. PATCHY SMOKE EARLY IN THE  
EVENING. PATCHY FOG LATE IN THE NIGHT. LOWS IN THE UPPER 40S.  
SOUTHEAST WINDS 5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER  
MIDNIGHT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. PATCHY SMOKE  
THROUGH THE DAY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE MID 70S. WEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. PATCHY SMOKE. LOWS IN THE UPPER 40S. WEST WINDS UP TO  
10 MPH.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE LOWER 70S. WEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN  
THE EVENING, THEN SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.  
LOWS IN THE UPPER 40S. WEST WINDS UP TO 10 MPH. CHANCE OF  
PRECIPITATION 20 PERCENT.    
TUESDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE  
OF PRECIPITATION 40 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS IN THE UPPER 70S.  
LOWS AROUND 50.    
FRIDAY NIGHT  
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
LOWS IN THE LOWER 50S. CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN  
THE MORNING. HIGHS IN THE MID 70S.  
 
 
 
MTZ308-161000-  
SOUTHERN HIGH PLAINS-  
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PATCHY SMOKE IN THE EVENING. MOSTLY CLOUDY WITH SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY WITH  
SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS AROUND 50.  
EAST WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.  
CHANCE OF PRECIPITATION 20 PERCENT.    
SUNDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. PATCHY SMOKE IN THE AFTERNOON. HIGHS IN THE UPPER  
70S. WEST WINDS UP TO 5 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.  
LOWS IN THE LOWER 50S. WEST WINDS UP TO 5 MPH.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN  
THE EVENING, THEN SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.  
LOWS IN THE LOWER 50S. WEST WINDS UP TO 10 MPH. CHANCE OF  
PRECIPITATION 20 PERCENT.    
TUESDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S. CHANCE  
OF PRECIPITATION 50 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS AROUND 50.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 79 TO 84. LOWS IN  
THE LOWER 50S.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S.  
 
 
 
MTZ303-161000-  
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-  
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE IN THE  
EVENING THEN BECOMING PARTLY CLOUDY. PATCHY FOG LATE IN THE  
NIGHT. LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO 10 MPH.    
SUNDAY  
PARTLY SUNNY. PATCHY FOG IN THE MORNING. PATCHY SMOKE  
IN THE AFTERNOON. A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO 5 MPH  
SHIFTING TO THE NORTHWEST IN THE AFTERNOON.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.  
PATCHY SMOKE AFTER MIDNIGHT. LOWS IN THE UPPER 40S. NORTHWEST  
WINDS UP TO 5 MPH.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 50. NORTHWEST WINDS UP  
TO 10 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
TUESDAY AND TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. HIGHS IN THE LOWER 70S. LOWS IN THE UPPER 40S.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS AROUND 80. LOWS  
IN THE LOWER 50S.    
FRIDAY NIGHT  
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
LOWS IN THE LOWER 50S. CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN  
THE MORNING. HIGHS IN THE UPPER 70S.  
 
 
TEMPERATURE / PRECIPITATION  
 
CUT BANK 46 77 47 75 / 10 20 20 0  
 
 
 
MTZ304-161000-  
EASTERN TOOLE AND LIBERTY-  
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,  
LOTHAIR, AND WHITLASH  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY IN THE LATE  
EVENING AND EARLY MORNING THEN BECOMING PARTLY CLOUDY. A  
20 PERCENT CHANCE OF RAIN SHOWERS LATE IN THE NIGHT. PATCHY FOG  
LATE IN THE NIGHT. LOWS IN THE UPPER 40S. EAST WINDS UP TO  
10 MPH.    
SUNDAY  
WARMER. MOSTLY SUNNY. PATCHY FOG IN THE MORNING. PATCHY  
SMOKE IN THE AFTERNOON. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 76 TO 82. SOUTH WINDS UP TO 5 MPH SHIFTING  
TO THE WEST IN THE AFTERNOON.    
SUNDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS. PATCHY SMOKE AFTER  
MIDNIGHT. LOWS AROUND 50. NORTHWEST WINDS UP TO 10 MPH.    
MONDAY  
PARTLY SUNNY. HIGHS 74 TO 80. EAST WINDS UP TO 5 MPH  
SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 50S. NORTH WINDS  
UP TO 5 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
TUESDAY  
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS. HIGHS 72 TO 78.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS AROUND 50.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 77 TO 86. LOWS IN  
THE LOWER 50S.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN  
SHOWERS. LOWS IN THE MID 50S.    
SATURDAY  
MOSTLY SUNNY. HIGHS 79 TO 85.  
 
 
 
MTZ305-161000-  
HILL COUNTY-  
INCLUDING THE CITY OF HAVRE  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY WITH  
A 20 PERCENT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG  
LATE IN THE NIGHT. LOWS IN THE UPPER 40S. EAST WINDS UP TO  
10 MPH.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. SLIGHT CHANCE  
OF RAIN SHOWERS IN THE MORNING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHEAST  
WINDS UP TO 5 MPH SHIFTING TO THE WEST IN THE AFTERNOON. CHANCE  
OF PRECIPITATION 20 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. PATCHY SMOKE  
THROUGH THE NIGHT. LOWS AROUND 50. NORTHWEST WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION 30 PERCENT.    
MONDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN  
THE AFTERNOON. HIGHS IN THE UPPER 70S. NORTHEAST WINDS UP TO  
5 MPH SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. NORTHEAST  
WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
TUESDAY AND TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. HIGHS IN THE UPPER 70S. LOWS AROUND 50.    
WEDNESDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS IN THE MID 80S.  
LOWS IN THE LOWER 50S.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN  
SHOWERS. LOWS IN THE MID 50S.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE MID 80S.  
 
 
TEMPERATURE / PRECIPITATION  
 
HAVRE 49 84 50 81 / 30 20 30 10  
 
 
 
MTZ306-161000-  
NORTHERN BLAINE COUNTY-  
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,  
AND FORT BELKNAP  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY WITH  
A 20 PERCENT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG  
LATE IN THE NIGHT. LOWS AROUND 50. EAST WINDS UP TO 10 MPH.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. SLIGHT CHANCE  
OF RAIN SHOWERS IN THE MORNING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 80. SOUTHEAST WINDS  
UP TO 10 MPH SHIFTING TO THE WEST IN THE AFTERNOON. CHANCE OF  
PRECIPITATION 20 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. PATCHY SMOKE  
AFTER MIDNIGHT. LOWS IN THE LOWER 50S. NORTHWEST WINDS UP TO  
10 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS UP TO  
5 MPH SHIFTING TO THE WEST AROUND 5 MPH IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 50. NORTH WINDS AROUND  
5 MPH SHIFTING TO THE EAST UP TO 5 MPH AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY AND TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. HIGHS IN THE MID 70S. LOWS AROUND 50.    
WEDNESDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS IN THE MID 80S.  
LOWS IN THE LOWER 50S.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN  
SHOWERS. LOWS IN THE MID 50S.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE MID 80S.  
 
 
 
MTZ309-161000-  
EASTERN PONDERA AND EASTERN TETON-  
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY LATE IN THE  
EVENING THEN BECOMING PARTLY CLOUDY. PATCHY SMOKE EARLY IN THE  
EVENING. PATCHY FOG LATE IN THE NIGHT. LOWS IN THE UPPER 40S.  
EAST WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.    
SUNDAY  
PARTLY SUNNY. PATCHY FOG IN THE MORNING. PATCHY SMOKE  
IN THE AFTERNOON. A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE LOWER 80S. WEST WINDS UP TO 5 MPH.    
SUNDAY NIGHT  
PATCHY SMOKE IN THE EVENING. MOSTLY CLOUDY WITH A  
20 PERCENT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY  
CLOUDY AFTER MIDNIGHT. LOWS IN THE UPPER 40S. NORTH WINDS UP TO  
5 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS UP TO  
5 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN  
THE EVENING, THEN SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.  
LOWS IN THE LOWER 50S. NORTH WINDS UP TO 10 MPH SHIFTING TO THE  
SOUTHWEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION 20 PERCENT.    
TUESDAY  
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS. HIGHS IN THE UPPER 70S.    
TUESDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
AFTER MIDNIGHT. LOWS IN THE UPPER 40S. CHANCE OF PRECIPITATION  
30 PERCENT.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS IN THE MID 80S.  
LOWS IN THE LOWER 50S.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 80S.  
 
 
 
MTZ310-161000-  
WESTERN AND CENTRAL CHOUTEAU COUNTY-  
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY CLOUDY WITH  
A 20 PERCENT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG  
LATE IN THE NIGHT. LOWS IN THE LOWER 50S. EAST WINDS UP TO 10 MPH  
SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. PATCHY SMOKE  
IN THE AFTERNOON. A 20 PERCENT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS UP TO 5 MPH  
SHIFTING TO THE WEST IN THE AFTERNOON.    
SUNDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. PATCHY SMOKE IN THE EVENING. A 20 PERCENT CHANCE OF  
THUNDERSTORMS. LOWS IN THE LOWER 50S. NORTHWEST WINDS UP TO 5 MPH  
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS UP TO  
5 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 50S. NORTH WINDS  
UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY AND TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. HIGHS IN THE UPPER 70S. LOWS IN THE LOWER 50S.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS IN THE MID 80S.  
LOWS IN THE MID 50S.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
 
 
 
MTZ311-161000-  
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-  
INCLUDING THE CITY OF ROCKY BOY  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY WITH  
SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. MOSTLY CLOUDY WITH  
CHANCE OF RAIN SHOWERS LATE IN THE NIGHT. LOWS IN THE LOWER 50S.  
SOUTHEAST WINDS UP TO 10 MPH. CHANCE OF SHOWERS 40 PERCENT.    
SUNDAY  
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 77 TO 83. SOUTH WINDS UP TO 5 MPH SHIFTING TO THE WEST IN  
THE AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.    
SUNDAY NIGHT  
PATCHY SMOKE IN THE EVENING. MOSTLY CLOUDY WITH  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF THUNDERSTORMS  
AFTER MIDNIGHT. LOWS IN THE MID 50S. WEST WINDS UP TO 5 MPH.  
CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 75 TO 81. WEST WINDS UP TO 10 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 50S. NORTH WINDS  
UP TO 10 MPH SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 73 TO 79. CHANCE OF  
PRECIPITATION 50 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S.    
WEDNESDAY  
SUNNY. HIGHS 78 TO 84.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 50S.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 79 TO 88. LOWS IN  
THE UPPER 50S.    
FRIDAY NIGHT  
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
LOWS AROUND 60. CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY  
MOSTLY SUNNY. HIGHS 82 TO 88.  
 
 
 
MTZ312-161000-  
CASCADE COUNTY BELOW 5000FT-  
INCLUDING THE CITY OF GREAT FALLS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY EARLY IN THE EVENING, THEN MOSTLY CLOUDY  
WITH SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE EVENING. PARTLY  
CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY  
SMOKE EARLY IN THE EVENING. PATCHY FOG LATE IN THE NIGHT. LOWS IN  
THE LOWER 50S. EAST WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH AFTER  
MIDNIGHT. CHANCE OF PRECIPITATION 20 PERCENT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. A 20 PERCENT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S.  
WEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE  
LOWER 50S. NORTH WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID 50S. NORTH WINDS UP  
TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 30 PERCENT.    
TUESDAY  
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. CHANCE  
OF PRECIPITATION 40 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S.    
WEDNESDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS IN THE MID 80S.  
LOWS IN THE MID 50S.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S.  
 
 
TEMPERATURE / PRECIPITATION  
 
GREAT FALLS ARPT 51 83 52 82 / 20 30 30 0  
 
 
 
MTZ313-161000-  
JUDITH BASIN COUNTY AND JUDITH GAP-  
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,  
BENCHLAND, HOBSON, AND MOCCASIN  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE  
EVENING, THEN CHANCE OF RAIN SHOWERS IN THE LATE EVENING AND  
OVERNIGHT. LOWS AROUND 50. SOUTHEAST WINDS 5 TO 10 MPH SHIFTING  
TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION  
50 PERCENT.    
SUNDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO  
5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE  
LOWER 50S. WEST WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION  
40 PERCENT.    
MONDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.  
SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO THE NORTHWEST IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. NORTHWEST  
WINDS 5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.  
CHANCE OF PRECIPITATION 40 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN  
THE MID 70S. CHANCE OF THUNDERSTORMS 50 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS AROUND 50.    
WEDNESDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 80 TO 85. LOWS IN  
THE LOWER 50S.    
FRIDAY NIGHT  
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
LOWS IN THE MID 50S. CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY  
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S.  
CHANCE OF PRECIPITATION 30 PERCENT.  
 
 
 
MTZ314-161000-  
FERGUS COUNTY BELOW 4500FT-  
INCLUDING THE CITIES OF HILGER AND LEWISTOWN  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PARTLY CLOUDY EARLY IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE EVENING, THEN  
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG LATE IN THE  
NIGHT. LOWS 50 TO 56. SOUTHEAST WINDS UP TO 10 MPH. CHANCE OF  
PRECIPITATION 50 PERCENT.    
SUNDAY  
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST  
WINDS UP TO 5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.  
CHANCE OF PRECIPITATION 40 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLOUDY. PATCHY SMOKE IN THE EVENING.  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS  
52 TO 58. WEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION  
50 PERCENT.    
MONDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS AROUND 80. WEST WINDS UP TO 5 MPH SHIFTING  
TO THE NORTHWEST IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 52 TO 58. NORTH WINDS UP TO  
5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 50 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. CHANCE OF  
PRECIPITATION 50 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 50 TO 56.    
WEDNESDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS 52 TO 58.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS IN THE MID 80S.  
LOWS 53 TO 59.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS 56 TO 62. HIGHS IN THE UPPER 80S.  
 
 
TEMPERATURE / PRECIPITATION  
 
LEWISTOWN 48 79 49 78 / 50 30 30 20  
 
 
 
MTZ315-161000-  
UPPER BLACKFOOT AND MACDONALD PASS-  
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,  
AND MACDONALD PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. PATCHY SMOKE EARLY IN THE EVENING. PATCHY FOG LATE IN THE  
NIGHT. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE  
OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS 44 TO  
52. WEST WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 69 TO 77. WEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 46 TO 54. WEST WINDS UP TO  
10 MPH.    
MONDAY  
PARTLY SUNNY. HIGHS 69 TO 77. WEST WINDS UP TO 10 MPH.  
GUSTS UP TO 25 MPH IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS 48 TO 56. WEST WINDS  
UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
TUESDAY  
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 66 TO 74. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 45 TO 53.    
WEDNESDAY AND WEDNESDAY NIGHT  
PARTLY CLOUDY. HIGHS 68 TO 76.  
LOWS 46 TO 54.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 70 TO 82. LOWS  
49 TO 57.    
FRIDAY NIGHT  
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 51 TO 59. CHANCE OF  
PRECIPITATION 30 PERCENT.    
SATURDAY  
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 71 TO 79. CHANCE OF PRECIPITATION 20 PERCENT.  
 
 
 
MTZ316-161000-  
GATES OF THE MOUNTAINS-  
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
PATCHY SMOKE EARLY IN THE EVENING. MOSTLY CLOUDY WITH  
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE  
EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS  
AFTER MIDNIGHT. LOWS IN THE LOWER 50S. EAST WINDS UP TO 10 MPH  
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION  
50 PERCENT.    
SUNDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 75 TO 83. SOUTHWEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE  
LOWER 50S. SOUTHWEST WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION  
40 PERCENT.    
MONDAY  
PARTLY SUNNY. HIGHS 74 TO 82. SOUTHWEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID 50S. WEST WINDS UP  
TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY  
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 71 TO 79. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S.    
WEDNESDAY  
SUNNY. HIGHS 74 TO 82.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 77 TO 88. LOWS IN  
THE MID 50S.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS 78 TO 86.  
 
 
 
MTZ317-161000-  
LITTLE BELT AND HIGHWOOD MOUNTAINS-  
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY UNTIL EARLY MORNING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN SLIGHT  
CHANCE OF THUNDERSTORMS LATE IN THE EVENING. CHANCE OF RAIN  
SHOWERS IN THE LATE EVENING AND OVERNIGHT. LOWS 47 TO 53.  
SOUTHEAST WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER  
MIDNIGHT. CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 68 TO 76. WEST WINDS UP TO 10 MPH. GUSTS UP  
TO 30 MPH IN THE AFTERNOON.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS. LOWS 48 TO 54. SOUTHWEST WINDS UP TO 10 MPH. GUSTS  
UP TO 25 MPH IN THE EVENING.    
MONDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 68 TO 76. SOUTHWEST WINDS UP TO 10 MPH.  
GUSTS UP TO 30 MPH IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 49 TO 55. NORTHWEST WINDS UP  
TO 10 MPH WITH GUSTS TO AROUND 30 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 40 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
64 TO 72. CHANCE OF THUNDERSTORMS 50 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 45 TO 53.    
WEDNESDAY THROUGH THURSDAY NIGHT  
MOSTLY CLEAR. HIGHS 68 TO 78.  
LOWS 48 TO 57.    
FRIDAY  
SUNNY. HIGHS 74 TO 82.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS 52 TO 60. HIGHS 73 TO 81.  
 
 
 
MTZ318-161000-  
SNOWY AND JUDITH MOUNTAINS-  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE  
EVENING, THEN SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE EVENING.  
CHANCE OF RAIN SHOWERS IN THE LATE EVENING AND OVERNIGHT. PATCHY  
FOG LATE IN THE NIGHT. LOWS 47 TO 53. SOUTH WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS IN THE MORNING,  
THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 70 TO  
76. WEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS 49 TO 55. NORTHWEST WINDS UP  
TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 69 TO 75. WEST WINDS UP  
TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 49 TO 55. NORTHWEST WINDS  
5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 40 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 66 TO 72. CHANCE OF  
PRECIPITATION 70 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 47 TO 53. CHANCE OF  
PRECIPITATION 40 PERCENT.    
WEDNESDAY AND WEDNESDAY NIGHT  
PARTLY CLOUDY. HIGHS 71 TO 77.  
LOWS 49 TO 55.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS 72 TO 82. LOWS  
51 TO 57.    
FRIDAY NIGHT  
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.  
LOWS 54 TO 60. CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY  
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 76 TO 84. CHANCE OF  
PRECIPITATION 30 PERCENT.  
 
 
 
MTZ319-161000-  
HELENA VALLEY-  
INCLUDING THE CITY OF HELENA  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. PATCHY SMOKE EARLY IN THE EVENING. PATCHY FOG LATE IN THE  
NIGHT. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN RAIN  
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN  
THE UPPER 40S. SOUTH WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION  
70 PERCENT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. A 20 PERCENT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S.  
SOUTHEAST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS AROUND 50. NORTHWEST  
WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.  
CHANCE OF PRECIPITATION 30 PERCENT.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS UP TO  
5 MPH SHIFTING TO THE WEST IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN  
THE EVENING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 50S. WEST WINDS  
5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 50 PERCENT.    
TUESDAY  
MOSTLY SUNNY. A 40 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE UPPER 70S.    
TUESDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
AFTER MIDNIGHT. LOWS IN THE UPPER 40S. CHANCE OF PRECIPITATION  
30 PERCENT.    
WEDNESDAY AND WEDNESDAY NIGHT  
PARTLY CLOUDY. HIGHS IN THE  
LOWER 80S. LOWS AROUND 50.    
THURSDAY THROUGH FRIDAY  
MOSTLY CLEAR. HIGHS IN THE MID 80S.  
LOWS IN THE LOWER 50S.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. CHANCE OF RAIN  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 50S.  
HIGHS IN THE MID 80S. CHANCE OF PRECIPITATION 30 PERCENT.  
 
 
TEMPERATURE / PRECIPITATION  
 
HELENA 50 82 53 82 / 80 20 30 10  
 
 
 
MTZ320-161000-  
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-  
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,  
BOZEMAN PASS, AND DEEP CREEK PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE  
OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS  
AROUND 50. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION  
50 PERCENT.    
SUNDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 67 TO 75. SOUTHWEST WINDS UP TO 10 MPH.  
GUSTS UP TO 30 MPH IN THE AFTERNOON.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 50S. WEST WINDS  
UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTH  
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. HIGHS 68 TO 76. SOUTHWEST WINDS UP TO  
10 MPH. GUSTS UP TO 35 MPH IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. WEST WINDS  
UP TO 10 MPH WITH GUSTS TO AROUND 30 MPH SHIFTING TO THE SOUTH  
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 50 PERCENT.    
TUESDAY  
PARTLY SUNNY WITH CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 64 TO 74. CHANCE OF PRECIPITATION  
50 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS AROUND 50. CHANCE OF  
PRECIPITATION 40 PERCENT.    
WEDNESDAY AND WEDNESDAY NIGHT  
PARTLY CLOUDY. HIGHS 67 TO 75.  
LOWS IN THE LOWER 50S.    
THURSDAY  
SUNNY. HIGHS 69 TO 79.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 50S.    
FRIDAY  
SUNNY. HIGHS 73 TO 83.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS 72 TO 82.  
 
 
 
MTZ321-161000-  
MEAGHER COUNTY VALLEYS-  
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,  
AND WHITE SULPHUR SPRINGS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE  
OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG  
LATE IN THE NIGHT. LOWS IN THE UPPER 40S. EAST WINDS UP TO 10 MPH  
SHIFTING TO THE SOUTH AFTER MIDNIGHT. CHANCE OF PRECIPITATION  
50 PERCENT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. A 20 PERCENT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.  
SOUTHWEST WINDS UP TO 5 MPH WITH GUSTS TO AROUND 20 MPH SHIFTING  
TO THE WEST 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH IN THE  
AFTERNOON.    
SUNDAY NIGHT  
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S. WEST WINDS  
UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTH  
AFTER MIDNIGHT.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO  
5 MPH SHIFTING TO THE WEST 5 TO 15 MPH WITH GUSTS TO AROUND  
30 MPH IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS AROUND 50. WEST WINDS 5 TO  
10 MPH WITH GUSTS TO AROUND 30 MPH SHIFTING TO THE SOUTH AFTER  
MIDNIGHT. CHANCE OF PRECIPITATION 50 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN  
THE LOWER 70S. CHANCE OF THUNDERSTORMS 50 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT.  
LOWS IN THE MID 40S.    
WEDNESDAY AND WEDNESDAY NIGHT  
PARTLY CLOUDY. HIGHS IN THE MID  
70S. LOWS IN THE UPPER 40S.    
THURSDAY  
SUNNY. HIGHS IN THE UPPER 70S.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 50.    
FRIDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 80S.  
 
 
 
MTZ322-161000-  
ELKHORN AND BOULDER MOUNTAINS-  
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,  
WICKES, ELK PARK PASS, AND HOMESTAKE PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE  
OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS 44 TO  
52. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION  
50 PERCENT.    
SUNDAY  
PARTLY SUNNY. A 40 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 67 TO 77. WEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS 46 TO 54. WEST WINDS UP TO  
10 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 68 TO 76. WEST WINDS UP TO 10 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN SHOWERS LIKELY  
AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS 47 TO 55.  
WEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 70 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
65 TO 73. CHANCE OF THUNDERSTORMS 50 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 45 TO 53. CHANCE OF  
PRECIPITATION 30 PERCENT.    
WEDNESDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. HIGHS 67 TO 75.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS 46 TO 54.    
THURSDAY  
SUNNY. HIGHS 71 TO 79.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS 49 TO 57.    
FRIDAY  
SUNNY. HIGHS 74 TO 82.    
FRIDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
RAIN SHOWERS AFTER MIDNIGHT. LOWS 51 TO 59. CHANCE OF  
PRECIPITATION 30 PERCENT.    
SATURDAY  
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
72 TO 80. CHANCE OF PRECIPITATION 30 PERCENT.  
 
 
 
MTZ323-161000-  
CANYON FERRY AREA-  
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE  
OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG  
LATE IN THE NIGHT. LOWS 48 TO 54. SOUTHWEST WINDS UP TO 10 MPH  
SHIFTING TO THE SOUTH AFTER MIDNIGHT. CHANCE OF PRECIPITATION  
50 PERCENT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. A 20 PERCENT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.  
SOUTH WINDS UP TO 10 MPH SHIFTING TO THE WEST IN THE AFTERNOON.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS 50 TO 56. NORTH WINDS UP TO  
5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO  
5 MPH SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS  
IN THE MID 50S. NORTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH  
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 60 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN  
THE MID 70S. CHANCE OF THUNDERSTORMS 50 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 48 TO 54.    
WEDNESDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. HIGHS IN THE UPPER 70S.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS 49 TO 55.    
THURSDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS 52 TO 58.    
FRIDAY  
SUNNY. HIGHS IN THE MID 80S.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A 20 PERCENT CHANCE  
OF THUNDERSTORMS. LOWS 54 TO 60. HIGHS IN THE LOWER 80S.  
 
 
 
MTZ324-161000-  
MISSOURI HEADWATERS-  
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,  
PONY, AND WHITEHALL  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS EARLY IN  
THE EVENING, THEN SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG  
LATE IN THE NIGHT. LOWS IN THE UPPER 40S. WEST WINDS UP TO 5 MPH.  
CHANCE OF PRECIPITATION 70 PERCENT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. CHANCE OF RAIN  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO  
THE WEST IN THE AFTERNOON. CHANCE OF PRECIPITATION 40 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 50. NORTHWEST WINDS UP  
TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS  
UP TO 10 MPH.    
MONDAY NIGHT  
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE LOWER 50S. WEST WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION 70 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN  
THE UPPER 70S. CHANCE OF THUNDERSTORMS 50 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S.    
WEDNESDAY AND WEDNESDAY NIGHT  
PARTLY CLOUDY. HIGHS IN THE  
UPPER 70S. LOWS AROUND 50.    
THURSDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
FRIDAY  
SUNNY. HIGHS IN THE MID 80S.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH SLIGHT CHANCE OF THUNDERSTORMS  
IN THE EVENING, THEN MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN  
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. CHANCE OF  
PRECIPITATION 20 PERCENT.    
SATURDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE MID 80S.  
 
 
 
MTZ325-161000-  
MADISON RIVER VALLEY-  
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,  
AND NORRIS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY UNTIL EARLY MORNING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN SLIGHT  
CHANCE OF THUNDERSTORMS LATE IN THE EVENING. SLIGHT CHANCE OF  
RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG LATE IN THE NIGHT. LOWS  
43 TO 49. SOUTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION  
50 PERCENT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. A 40 PERCENT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.  
SOUTH WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS 46 TO 52. SOUTH WINDS UP TO  
10 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO 10 MPH  
SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.    
MONDAY NIGHT  
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS 47 TO 53. SOUTH WINDS UP TO 10 MPH. CHANCE OF  
PRECIPITATION 70 PERCENT.    
TUESDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE MORNING, THEN CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE MID 70S. CHANCE OF PRECIPITATION  
50 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 44 TO 50. CHANCE OF  
PRECIPITATION 40 PERCENT.    
WEDNESDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN  
SHOWERS IN THE EVENING. LOWS 46 TO 52.    
THURSDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS 49 TO 55.    
FRIDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE MID 80S.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH SLIGHT CHANCE OF THUNDERSTORMS  
IN THE EVENING, THEN MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN  
SHOWERS AFTER MIDNIGHT. LOWS 51 TO 57. CHANCE OF PRECIPITATION  
20 PERCENT.    
SATURDAY  
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN  
THE MID 80S. CHANCE OF PRECIPITATION 30 PERCENT.  
 
 
 
MTZ326-161000-  
GALLATIN VALLEY-  
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE  
OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
EVENING. SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG  
LATE IN THE NIGHT. LOWS IN THE UPPER 40S. SOUTH WINDS UP TO  
5 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY  
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. CHANCE OF RAIN  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS IN THE UPPER 70S. SOUTHEAST WINDS UP TO 5 MPH SHIFTING TO  
THE NORTHWEST IN THE AFTERNOON. CHANCE OF PRECIPITATION  
40 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 50. SOUTHEAST WINDS UP  
TO 5 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO  
5 MPH SHIFTING TO THE WEST WITH GUSTS TO AROUND 20 MPH IN THE  
AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS  
IN THE LOWER 50S. WEST WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH  
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 70 PERCENT.    
TUESDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE MORNING, THEN CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE UPPER 70S. CHANCE OF PRECIPITATION  
50 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S.  
CHANCE OF PRECIPITATION 40 PERCENT.    
WEDNESDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN  
SHOWERS IN THE EVENING. LOWS AROUND 50.    
THURSDAY  
SUNNY. HIGHS IN THE LOWER 80S.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
FRIDAY  
SUNNY. HIGHS IN THE MID 80S.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH SLIGHT CHANCE OF THUNDERSTORMS  
IN THE EVENING, THEN MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN  
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. CHANCE OF  
PRECIPITATION 20 PERCENT.    
SATURDAY  
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S. CHANCE OF  
PRECIPITATION 30 PERCENT.  
 
 
TEMPERATURE / PRECIPITATION  
 
BOZEMAN AIRPORT 47 79 48 81 / 60 30 40 0  
BOZEMAN MSU 48 78 51 79 / 50 30 40 0  
 
 
 
MTZ330-161000-  
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-  
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,  
AND RAYNOLDS PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN SLIGHT  
CHANCE OF THUNDERSTORMS LATE IN THE EVENING. SLIGHT CHANCE OF  
RAIN SHOWERS AFTER MIDNIGHT. PATCHY FOG LATE IN THE NIGHT. LOWS  
40 TO 48. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION  
50 PERCENT.    
SUNDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 63 TO 73. SOUTHWEST  
WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS 42 TO 50. SOUTHWEST WINDS UP  
TO 10 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 64 TO 74. SOUTH WINDS UP TO 10 MPH SHIFTING  
TO THE SOUTHWEST IN THE AFTERNOON. GUSTS UP TO 25 MPH.    
MONDAY NIGHT  
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS 44 TO 52. WEST WINDS 5 TO 10 MPH SHIFTING TO  
THE SOUTH AFTER MIDNIGHT. CHANCE OF PRECIPITATION 70 PERCENT.    
TUESDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE MORNING, THEN CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 61 TO 71. CHANCE OF PRECIPITATION  
50 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 41 TO 49. CHANCE OF  
PRECIPITATION 50 PERCENT.    
WEDNESDAY  
MOSTLY SUNNY. HIGHS 63 TO 73.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN  
SHOWERS IN THE EVENING. LOWS 43 TO 51.    
THURSDAY  
SUNNY. HIGHS 66 TO 76.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS 46 TO 54.    
FRIDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 70 TO 80.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH SLIGHT CHANCE OF THUNDERSTORMS  
IN THE EVENING, THEN MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN  
SHOWERS AFTER MIDNIGHT. LOWS 48 TO 56. CHANCE OF PRECIPITATION  
20 PERCENT.    
SATURDAY  
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
69 TO 79. CHANCE OF PRECIPITATION 40 PERCENT.  
 
 
TEMPERATURE / PRECIPITATION  
 
WEST YELLOWSTONE 34 75 35 76 / 80 20 20 10  
 
 
 
MTZ327-161000-  
NORTHWEST BEAVERHEAD COUNTY-  
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,  
AND CHIEF JOSEPH PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY WITH CHANCE OF THUNDERSTORMS EARLY IN  
THE EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN  
SHOWERS IN THE LATE EVENING AND EARLY MORNING. PARTLY CLOUDY LATE  
IN THE NIGHT. PATCHY FOG LATE IN THE NIGHT. LOWS 37 TO 47. SOUTH  
WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY  
PARTLY SUNNY. PATCHY FOG IN THE MORNING. A 20 PERCENT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 64 TO 74.  
SOUTHWEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING. LOWS 40 TO 50. NORTHWEST WINDS UP  
TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.    
MONDAY  
PARTLY SUNNY. HIGHS 66 TO 76. SOUTHWEST WINDS UP TO  
10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON.    
MONDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN SHOWERS LIKELY  
AND SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS 41 TO 51.  
NORTHWEST WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER  
MIDNIGHT. CHANCE OF PRECIPITATION 60 PERCENT.    
TUESDAY  
PARTLY SUNNY. A 50 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 63 TO 73.    
TUESDAY NIGHT  
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.  
LOWS 38 TO 48.    
WEDNESDAY AND WEDNESDAY NIGHT  
PARTLY CLOUDY. HIGHS 64 TO 74.  
LOWS 40 TO 50.    
THURSDAY  
SUNNY. HIGHS 68 TO 78.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS 43 TO 53.    
FRIDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 71 TO 81.    
FRIDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
AFTER MIDNIGHT. LOWS 45 TO 55. CHANCE OF PRECIPITATION  
30 PERCENT.    
SATURDAY  
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
69 TO 79. CHANCE OF PRECIPITATION 40 PERCENT.  
 
 
 
MTZ328-161000-  
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-  
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY WITH CHANCE OF THUNDERSTORMS EARLY IN  
THE EVENING, THEN MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN  
SHOWERS IN THE LATE EVENING AND EARLY MORNING. PARTLY CLOUDY LATE  
IN THE NIGHT. PATCHY FOG LATE IN THE NIGHT. LOWS IN THE MID 40S.  
SOUTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY  
PARTLY SUNNY. PATCHY FOG IN THE MORNING. A 20 PERCENT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 72 TO 78.  
SOUTHWEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE UPPER 40S. SOUTHWEST  
WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. HIGHS 74 TO 80. SOUTHWEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS AROUND 50. NORTHWEST WINDS  
5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 50 PERCENT.    
TUESDAY  
PARTLY SUNNY. A 50 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 72 TO 78.    
TUESDAY NIGHT  
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.  
LOWS IN THE UPPER 40S.    
WEDNESDAY AND WEDNESDAY NIGHT  
PARTLY CLOUDY. HIGHS 73 TO 79.  
LOWS IN THE UPPER 40S.    
THURSDAY  
SUNNY. HIGHS 76 TO 82.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
FRIDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 79 TO 85.    
FRIDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S.  
CHANCE OF PRECIPITATION 30 PERCENT.    
SATURDAY  
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
78 TO 84. CHANCE OF PRECIPITATION 40 PERCENT.  
 
 
TEMPERATURE / PRECIPITATION  
 
DILLON 44 77 46 78 / 70 30 30 10  
 
 
 
MTZ329-161000-  
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-  
INCLUDING THE CITY OF MONIDA PASS  
337 PM MDT SAT AUG 15 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. CHANCE OF THUNDERSTORMS EARLY IN THE EVENING, THEN CHANCE  
OF RAIN SHOWERS LATE IN THE EVENING. SLIGHT CHANCE OF RAIN  
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 40S. SOUTH WINDS UP TO  
10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY  
PARTLY SUNNY. A 50 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 65 TO 73. SOUTHWEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT  
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE UPPER 40S. SOUTH WINDS  
UP TO 10 MPH. CHANCE OF PRECIPITATION 40 PERCENT.    
MONDAY  
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 67 TO 75. SOUTHWEST  
WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON. CHANCE  
OF PRECIPITATION 30 PERCENT.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. SOUTHWEST  
WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
TUESDAY  
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
65 TO 73. CHANCE OF THUNDERSTORMS 50 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING THEN BECOMING  
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
WEDNESDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. HIGHS 66 TO 74.    
WEDNESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
THURSDAY  
SUNNY. HIGHS 70 TO 78.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
FRIDAY  
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 73 TO 81.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF  
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT.  
LOWS IN THE MID 50S.    
SATURDAY  
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
71 TO 79. CHANCE OF PRECIPITATION 40 PERCENT.  
 
 
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