436  
FPUS55 KTFX 190937  
ZFPTFX  
 
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA  
NATIONAL WEATHER SERVICE GREAT FALLS MT  
336 AM MDT SAT SEP 19 2026  
 
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION  
ARE FOR TODAY, TONIGHT, AND SUNDAY.  
 
MTZ301-192200-  
EAST GLACIER PARK REGION-  
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,  
SAINT MARY, MARIAS PASS, AND LOGAN PASS  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
MOSTLY SUNNY. HIGHS 57 TO 65. EAST WINDS UP TO 10 MPH.  
GUSTS UP TO 25 MPH IN THE AFTERNOON.    
TONIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTH WINDS UP TO  
10 MPH WITH GUSTS TO AROUND 25 MPH.    
SUNDAY
 
SUNNY. HIGHS 59 TO 69. SOUTHWEST WINDS 5 TO 10 MPH.  
GUSTS UP TO 25 MPH IN THE MORNING.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHWEST  
WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.    
MONDAY
 
SUNNY. HIGHS 60 TO 70. SOUTHWEST WINDS 5 TO 15 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S.  
HIGHS 58 TO 68.    
TUESDAY NIGHT THROUGH THURSDAY NIGHT
 
PARTLY CLOUDY. LOWS IN  
THE MID 40S. HIGHS 57 TO 68.    
FRIDAY
 
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE  
AFTERNOON. HIGHS 54 TO 62.  
 

 
 
MTZ307-192200-  
SOUTHERN ROCKY MOUNTAIN FRONT-  
INCLUDING THE CITY OF ROGERS PASS  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
MOSTLY CLOUDY. CHANCE OF RAIN IN THE MORNING, THEN  
SLIGHT CHANCE OF RAIN EARLY IN THE AFTERNOON. HIGHS 52 TO 60.  
NORTHEAST WINDS UP TO 10 MPH. CHANCE OF RAIN 50 PERCENT.    
TONIGHT
 
PARTLY CLOUDY. LOWS AROUND 40. EAST WINDS UP TO 5 MPH  
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.    
SUNDAY
 
WARMER, SUNNY. HIGHS 59 TO 69. SOUTHWEST WINDS UP TO  
10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHWEST  
WINDS UP TO 5 MPH.    
MONDAY
 
SUNNY. HIGHS 62 TO 72. WEST WINDS UP TO 10 MPH.    
MONDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS IN THE MID  
40S. HIGHS 61 TO 71.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS IN THE UPPER  
40S. HIGHS 58 TO 68.  
 

 
 
MTZ302-192200-  
NORTHERN HIGH PLAINS-  
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
PARTLY SUNNY IN THE MORNING THEN CLEARING. HIGHS IN THE  
MID 60S. SOUTH WINDS UP TO 5 MPH SHIFTING TO THE SOUTHEAST 5 TO  
15 MPH IN THE AFTERNOON.    
TONIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS UP TO  
10 MPH WITH GUSTS TO AROUND 25 MPH.    
SUNDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO  
10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHWEST  
WINDS UP TO 10 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S.  
HIGHS IN THE LOWER 70S.    
TUESDAY NIGHT THROUGH THURSDAY NIGHT
 
PARTLY CLOUDY. LOWS IN  
THE UPPER 40S. HIGHS IN THE LOWER 70S.    
FRIDAY
 
PARTLY SUNNY. HIGHS IN THE MID 60S.  
 

 
 
MTZ308-192200-  
SOUTHERN HIGH PLAINS-  
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
MOSTLY CLOUDY. CHANCE OF RAIN EARLY IN THE MORNING, THEN  
SLIGHT CHANCE OF RAIN LATE IN THE MORNING. HIGHS IN THE MID 60S.  
NORTH WINDS UP TO 10 MPH SHIFTING TO THE EAST IN THE AFTERNOON.  
CHANCE OF RAIN 50 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS IN  
THE MID 40S. SOUTHEAST WINDS UP TO 5 MPH SHIFTING TO THE  
SOUTHWEST AFTER MIDNIGHT.    
SUNDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS UP TO  
5 MPH SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST  
WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.    
MONDAY
 
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S.  
HIGHS IN THE MID 70S.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 50.    
WEDNESDAY AND WEDNESDAY NIGHT
 
MOSTLY CLEAR. HIGHS IN THE UPPER  
70S. LOWS AROUND 50.    
THURSDAY THROUGH FRIDAY
 
PARTLY CLOUDY. HIGHS IN THE MID 70S.  
LOWS AROUND 50.  
 

 
 
MTZ303-192200-  
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-  
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS UP TO  
5 MPH SHIFTING TO THE SOUTHEAST 5 TO 15 MPH IN THE AFTERNOON.    
TONIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS UP TO  
15 MPH.    
SUNDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO  
15 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS UP  
TO 15 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO 15 MPH.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE  
UPPER 40S. HIGHS IN THE LOWER 70S.    
WEDNESDAY THROUGH THURSDAY
 
PARTLY CLOUDY. HIGHS IN THE MID  
70S. LOWS IN THE UPPER 40S.    
THURSDAY NIGHT
 
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN  
IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE  
UPPER 40S.    
FRIDAY
 
PARTLY SUNNY. HIGHS IN THE UPPER 60S.  
 

 
TEMPERATURE / PRECIPITATION  
 
CUT BANK 68 43 73 / 0 0 0  
 

 
 
MTZ304-192200-  
EASTERN TOOLE AND LIBERTY-  
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,  
LOTHAIR, AND WHITLASH  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
MOSTLY CLOUDY EARLY IN THE MORNING THEN BECOMING MOSTLY  
SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS UP TO 10 MPH.    
TONIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST WINDS UP  
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.    
SUNDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTHEAST WINDS UP TO  
15 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST  
WINDS 5 TO 15 MPH.    
MONDAY
 
SUNNY. HIGHS 73 TO 79. SOUTH WINDS UP TO 15 MPH.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE  
UPPER 40S. HIGHS 72 TO 78.    
WEDNESDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 50.    
THURSDAY
 
MOSTLY SUNNY. HIGHS 72 TO 78.    
THURSDAY NIGHT
 
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN  
THE EVENING. LOWS IN THE UPPER 40S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 67 TO 73.  
 

 
 
MTZ305-192200-  
HILL COUNTY-  
INCLUDING THE CITY OF HAVRE  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
PARTLY SUNNY. HIGHS AROUND 70. EAST WINDS 5 TO 10 MPH.    
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS IN THE MID 40S. EAST WINDS UP TO 10 MPH.    
SUNDAY
 
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE  
LOWER 70S. SOUTHEAST WINDS UP TO 10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST  
WINDS 5 TO 15 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS UP TO  
15 MPH.    
MONDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER  
40S. HIGHS IN THE UPPER 70S.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS AROUND 50. HIGHS  
IN THE MID 70S.  
 

 
TEMPERATURE / PRECIPITATION  
 
HAVRE 73 46 74 / 0 0 0  
 

 
 
MTZ306-192200-  
NORTHERN BLAINE COUNTY-  
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,  
AND FORT BELKNAP  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
PARTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS 5 TO  
15 MPH.    
TONIGHT
 
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS 5 TO  
10 MPH.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTHEAST WINDS  
5 TO 15 MPH.    
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST  
WINDS 5 TO 15 MPH.    
MONDAY
 
PARTLY SUNNY IN THE MORNING THEN CLEARING. HIGHS IN THE  
LOWER 70S. SOUTHEAST WINDS 10 TO 20 MPH.    
MONDAY NIGHT THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND  
50. HIGHS IN THE UPPER 70S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.  
 

 
 
MTZ309-192200-  
EASTERN PONDERA AND EASTERN TETON-  
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
MOSTLY CLOUDY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS  
UP TO 10 MPH SHIFTING TO THE EAST IN THE AFTERNOON.    
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS IN THE MID 40S. SOUTHEAST WINDS UP TO 10 MPH  
SHIFTING TO THE SOUTH AFTER MIDNIGHT.    
SUNDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO  
10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST  
WINDS UP TO 10 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO  
10 MPH.    
MONDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER  
40S. HIGHS IN THE UPPER 70S.    
THURSDAY NIGHT
 
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN  
THE EVENING. LOWS IN THE UPPER 40S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S.  
 

 
 
MTZ310-192200-  
WESTERN AND CENTRAL CHOUTEAU COUNTY-  
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
MOSTLY CLOUDY. HIGHS IN THE UPPER 60S. EAST WINDS UP TO  
10 MPH.    
TONIGHT
 
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST WINDS  
UP TO 10 MPH.    
SUNDAY
 
PARTLY SUNNY IN THE MORNING THEN CLEARING. HIGHS IN THE  
LOWER 70S. SOUTHEAST WINDS UP TO 10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST  
WINDS 5 TO 15 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS UP TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS AROUND 50. HIGHS  
IN THE UPPER 70S.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS AROUND 80. LOWS  
IN THE LOWER 50S.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER  
50S. HIGHS IN THE UPPER 70S.  
 

 
 
MTZ311-192200-  
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-  
INCLUDING THE CITY OF ROCKY BOY  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
MOSTLY CLOUDY. HIGHS 64 TO 70. EAST WINDS UP TO 10 MPH.    
TONIGHT
 
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER  
MIDNIGHT. LOWS IN THE UPPER 40S. EAST WINDS UP TO 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY IN THE MORNING THEN BECOMING MOSTLY  
SUNNY. HIGHS 64 TO 70. SOUTHEAST WINDS UP TO 10 MPH.    
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST  
WINDS 5 TO 15 MPH.    
MONDAY
 
MOSTLY SUNNY. HIGHS 70 TO 76. SOUTHEAST WINDS 5 TO  
15 MPH.    
MONDAY NIGHT THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE  
LOWER 50S. HIGHS 74 TO 81.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 74 TO 80.  
 

 
 
MTZ312-192200-  
CASCADE COUNTY BELOW 5000FT-  
INCLUDING THE CITY OF GREAT FALLS  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
CLOUDY. CHANCE OF RAIN EARLY IN THE MORNING, THEN SLIGHT  
CHANCE OF RAIN IN THE LATE MORNING AND AFTERNOON. HIGHS IN THE  
UPPER 60S. NORTHEAST WINDS UP TO 10 MPH. CHANCE OF RAIN  
50 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO 10 MPH.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO  
5 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST  
WINDS UP TO 10 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER  
50S. HIGHS IN THE UPPER 70S.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER  
50S. HIGHS IN THE UPPER 70S.  
 

 
TEMPERATURE / PRECIPITATION  
 
GREAT FALLS ARPT 68 47 74 / 20 0 0  
 

 
 
MTZ313-192200-  
JUDITH BASIN COUNTY AND JUDITH GAP-  
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,  
BENCHLAND, HOBSON, AND MOCCASIN  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
COOLER. CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS  
IN THE LOWER 60S. NORTHEAST WINDS UP TO 10 MPH.    
TONIGHT
 
CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. LOWS IN THE  
MID 40S. SOUTHEAST WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST  
AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE  
MORNING. HIGHS IN THE UPPER 60S. SOUTH WINDS UP TO 5 MPH SHIFTING  
TO THE EAST IN THE AFTERNOON.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS  
5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO 10 MPH.    
MONDAY NIGHT THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND  
50. HIGHS IN THE UPPER 70S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.  
 

 
 
MTZ314-192200-  
FERGUS COUNTY BELOW 4500FT-  
INCLUDING THE CITIES OF HILGER AND LEWISTOWN  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS 61 TO 67.  
NORTHEAST WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.    
TONIGHT
 
CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. LOWS 46 TO  
52. EAST WINDS UP TO 10 MPH.    
SUNDAY
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS  
62 TO 68. EAST WINDS UP TO 10 MPH.    
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS 45 TO 51. SOUTHEAST WINDS  
5 TO 15 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE MID 70S. SOUTHEAST WINDS UP TO  
10 MPH WITH GUSTS TO AROUND 25 MPH.    
MONDAY NIGHT THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE  
LOWER 50S. HIGHS AROUND 80.    
FRIDAY
 
MOSTLY SUNNY. HIGHS AROUND 80.  
 

 
TEMPERATURE / PRECIPITATION  
 
LEWISTOWN 61 45 65 / 70 70 50  
 

 
 
MTZ315-192200-  
UPPER BLACKFOOT AND MACDONALD PASS-  
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,  
AND MACDONALD PASS  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
RAIN SHOWERS IN THE MORNING. SLIGHT CHANCE OF  
THUNDERSTORMS THROUGH THE DAY. CHANCE OF RAIN SHOWERS IN THE  
AFTERNOON. HIGHS 51 TO 61. NORTHEAST WINDS UP TO 10 MPH. CHANCE  
OF PRECIPITATION NEAR 100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS 39 TO 45. NORTHEAST WINDS UP TO 5 MPH SHIFTING TO  
THE WEST AFTER MIDNIGHT.    
SUNDAY
 
WARMER. MOSTLY SUNNY. HIGHS 61 TO 69. SOUTHWEST WINDS  
UP TO 5 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHWEST  
WINDS UP TO 5 MPH.    
MONDAY
 
SUNNY. HIGHS 65 TO 73. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S.  
HIGHS 65 TO 73.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS 66 TO 74.  
LOWS 45 TO 51.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 64 TO 72.  
 

 
 
MTZ316-192200-  
GATES OF THE MOUNTAINS-  
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
CLOUDY. RAIN LIKELY IN THE MORNING, THEN CHANCE OF RAIN  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 59 TO 65. NORTH WINDS 5 TO 10 MPH. CHANCE OF PRECIPITATION  
70 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS IN THE MID 40S. NORTHEAST WINDS UP TO 5 MPH SHIFTING  
TO THE SOUTHWEST AFTER MIDNIGHT.    
SUNDAY
 
WARMER. MOSTLY SUNNY. HIGHS 67 TO 73. SOUTH WINDS UP TO  
10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH WINDS  
UP TO 10 MPH.    
MONDAY
 
SUNNY. HIGHS 71 TO 77. SOUTH WINDS UP TO 15 MPH.    
MONDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS AROUND 50.  
HIGHS 72 TO 79.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER  
50S. HIGHS 70 TO 76.  
 

 
 
MTZ317-192200-  
LITTLE BELT AND HIGHWOOD MOUNTAINS-  
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS  
336 AM MDT SAT SEP 19 2026  
   
..FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING
 
 
   
TODAY
 
RAIN LIKELY IN THE MORNING, THEN CHANCE OF RAIN IN THE  
AFTERNOON. HIGHS 51 TO 59. NORTHEAST WINDS UP TO 10 MPH. CHANCE  
OF RAIN 70 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. LOWS  
40 TO 46. EAST WINDS UP TO 10 MPH SHIFTING TO THE SOUTHEAST AFTER  
MIDNIGHT.    
SUNDAY
 
WARMER. PARTLY SUNNY. HIGHS 58 TO 66. SOUTH WINDS UP TO  
10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 40 TO 46. SOUTH WINDS UP TO  
10 MPH.    
MONDAY
 
SUNNY. HIGHS 64 TO 72. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS 44 TO  
53. HIGHS 65 TO 75.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 66 TO 74.  
 

 
 
MTZ318-192200-  
SNOWY AND JUDITH MOUNTAINS-  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
COOLER. RAIN LIKELY IN THE MORNING, THEN RAIN SHOWERS  
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 51 TO  
57. NORTHEAST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH.  
CHANCE OF PRECIPITATION 90 PERCENT.    
TONIGHT
 
RAIN IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.  
PATCHY FOG AFTER MIDNIGHT. LOWS IN THE MID 40S. NORTHEAST WINDS  
UP TO 10 MPH. CHANCE OF RAIN 90 PERCENT.    
SUNDAY
 
PATCHY FOG IN THE MORNING. MOSTLY CLOUDY WITH A  
50 PERCENT CHANCE OF RAIN. HIGHS 54 TO 60. NORTHEAST WINDS UP TO  
10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN IN  
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE LOWER  
40S. SOUTHEAST WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.    
MONDAY
 
WARMER, SUNNY. HIGHS 63 TO 71. SOUTH WINDS UP TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S.  
HIGHS 67 TO 75.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS 68 TO 77.  
LOWS IN THE LOWER 50S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 68 TO 76.  
 

 
 
MTZ319-192200-  
HELENA VALLEY-  
INCLUDING THE CITY OF HELENA  
336 AM MDT SAT SEP 19 2026  
   
..FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON
 
 
   
TODAY
 
COOLER. RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS  
EARLY IN THE MORNING, THEN RAIN LATE IN THE MORNING. CHANCE OF  
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY IN THE  
MORNING. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE  
AFTERNOON. HIGHS IN THE MID 60S. NORTHWEST WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION NEAR 100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY  
CLOUDY. LOWS IN THE MID 40S. SOUTHWEST WINDS UP TO 5 MPH.    
SUNDAY
 
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE  
LOWER 70S. LIGHT WINDS BECOMING SOUTHEAST UP TO 5 MPH IN THE  
AFTERNOON.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS UP  
TO 5 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO  
10 MPH.    
MONDAY NIGHT THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE  
UPPER 40S. HIGHS IN THE UPPER 70S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.  
 

 
TEMPERATURE / PRECIPITATION  
 
HELENA 63 46 72 / 100 20 0  
 

 
 
MTZ320-192200-  
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-  
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,  
BOZEMAN PASS, AND DEEP CREEK PASS  
336 AM MDT SAT SEP 19 2026  
   
..FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING
 
 
   
TODAY
 
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS UNTIL  
LATE AFTERNOON, THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF  
THUNDERSTORMS LATE IN THE AFTERNOON. SOME THUNDERSTORMS MAY  
PRODUCE HEAVY RAINFALL. NEAR STEADY TEMPERATURE IN THE UPPER 40S.  
NORTHEAST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION NEAR  
100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. LOWS  
IN THE LOWER 40S. NORTHEAST WINDS UP TO 5 MPH.    
SUNDAY
 
WARMER. PARTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS  
55 TO 65. SOUTHWEST WINDS UP TO 5 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTH WINDS  
UP TO 5 MPH.    
MONDAY
 
WARMER, SUNNY. HIGHS 61 TO 71. SOUTH WINDS UP TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S.  
HIGHS 64 TO 72.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS 65 TO 74.  
LOWS IN THE UPPER 40S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 65 TO 73.  
 

 
 
MTZ321-192200-  
MEAGHER COUNTY VALLEYS-  
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,  
AND WHITE SULPHUR SPRINGS  
336 AM MDT SAT SEP 19 2026  
   
..FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON
 
 
   
TODAY
 
COOLER. PATCHY FOG IN THE MORNING. RAIN SHOWERS AND  
SLIGHT CHANCE OF THUNDERSTORMS UNTIL LATE AFTERNOON, THEN RAIN  
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE  
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. HIGHS  
IN THE MID 50S. NORTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION  
NEAR 100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. PATCHY  
FOG AFTER MIDNIGHT. LOWS IN THE LOWER 40S. NORTH WINDS UP TO  
5 MPH.    
SUNDAY
 
PARTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE  
MID 60S. SOUTHWEST WINDS UP TO 5 MPH.    
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHEAST  
WINDS UP TO 5 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS UP TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S.  
HIGHS IN THE LOWER 70S.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 40S.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS IN THE  
MID 70S. LOWS IN THE MID 40S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S.  
 

 
 
MTZ322-192200-  
ELKHORN AND BOULDER MOUNTAINS-  
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,  
WICKES, ELK PARK PASS, AND HOMESTAKE PASS  
336 AM MDT SAT SEP 19 2026  
   
..FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING
 
 
   
TODAY
 
RAIN SHOWERS IN THE MORNING. SLIGHT CHANCE OF  
THUNDERSTORMS THROUGH THE DAY. RAIN SHOWERS LIKELY IN THE  
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. NEAR  
STEADY TEMPERATURE IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH  
WITH GUSTS TO AROUND 25 MPH. CHANCE OF PRECIPITATION NEAR  
100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE  
EVENING. PATCHY FOG AFTER MIDNIGHT. LOWS 37 TO 45. NORTHEAST  
WINDS UP TO 5 MPH SHIFTING TO THE NORTHWEST AFTER MIDNIGHT.    
SUNDAY
 
WARMER. MOSTLY SUNNY. HIGHS 58 TO 66. SOUTHWEST WINDS  
UP TO 5 MPH SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 39 TO 45. SOUTH WINDS UP TO  
5 MPH.    
MONDAY
 
SUNNY. HIGHS 63 TO 71. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS 41 TO 47. HIGHS  
64 TO 72.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 42 TO 48.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS 65 TO 74.  
LOWS 43 TO 50.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 65 TO 73.  
 

 
 
MTZ323-192200-  
CANYON FERRY AREA-  
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON  
336 AM MDT SAT SEP 19 2026  
   
..FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON
 
 
   
TODAY
 
COOLER. RAIN SHOWERS IN THE MORNING. SLIGHT CHANCE OF  
THUNDERSTORMS THROUGH THE DAY. RAIN SHOWERS LIKELY IN THE  
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. HIGHS  
IN THE UPPER 50S. NORTH WINDS 5 TO 15 MPH. CHANCE OF  
PRECIPITATION NEAR 100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN. PATCHY  
FOG AFTER MIDNIGHT. LOWS IN THE MID 40S. NORTH WINDS UP TO 5 MPH  
SHIFTING TO THE WEST AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE  
UPPER 60S. SOUTH WINDS UP TO 5 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 43 TO 49. SOUTHEAST WINDS UP  
TO 10 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO  
10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS 45 TO 51. HIGHS IN  
THE MID 70S.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 45 TO 51.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS IN THE  
UPPER 70S. LOWS 46 TO 52.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S.  
 

 
 
MTZ324-192200-  
MISSOURI HEADWATERS-  
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,  
PONY, AND WHITEHALL  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
COOLER. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING. RAIN SHOWERS THROUGH THE DAY.  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S.  
NORTH WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF  
PRECIPITATION NEAR 100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN. AREAS  
OF FOG AFTER MIDNIGHT. LOWS IN THE LOWER 40S. NORTH WINDS UP TO  
5 MPH SHIFTING TO THE NORTHWEST AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. AREAS OF FOG IN THE MORNING. HIGHS IN THE  
MID 60S. SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO THE SOUTHEAST IN  
THE AFTERNOON.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. EAST WINDS  
UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.    
MONDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS UP TO  
5 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S.  
HIGHS IN THE MID 70S.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 40S.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS IN THE  
UPPER 70S. LOWS IN THE UPPER 40S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S.  
 

 
 
MTZ325-192200-  
MADISON RIVER VALLEY-  
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,  
AND NORRIS  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
COOLER. AREAS OF FOG EARLY IN THE MORNING. PATCHY FOG  
LATE IN THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS IN THE  
MORNING. RAIN SHOWERS THROUGH THE DAY. CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE UPPER 50S. NORTH WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION 90 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING, THEN  
SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. AREAS OF FOG AFTER  
MIDNIGHT. LOWS IN THE LOWER 40S. NORTH WINDS UP TO 10 MPH. CHANCE  
OF RAIN 50 PERCENT.    
SUNDAY
 
PARTLY SUNNY. AREAS OF FOG IN THE MORNING. HIGHS IN THE  
MID 60S. SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO THE NORTHWEST IN  
THE AFTERNOON.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTHEAST  
WINDS UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.    
MONDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO 10 MPH  
SHIFTING TO THE WEST IN THE AFTERNOON.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S.  
HIGHS IN THE MID 70S.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 40S.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS IN THE  
UPPER 70S. LOWS IN THE UPPER 40S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.  
 

 
 
MTZ326-192200-  
GALLATIN VALLEY-  
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY  
336 AM MDT SAT SEP 19 2026  
   
..FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON
 
 
   
TODAY
 
COOLER. PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING. RAIN SHOWERS THROUGH THE DAY.  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY  
PRODUCE HEAVY RAINFALL IN THE MORNING. SOME THUNDERSTORMS MAY  
PRODUCE HEAVY RAINFALL IN THE AFTERNOON. HIGHS IN THE UPPER 50S.  
NORTH WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION NEAR  
100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. AREAS  
OF FOG AFTER MIDNIGHT. LOWS IN THE MID 40S. NORTHWEST WINDS UP TO  
5 MPH IN THE EVENING BECOMING LIGHT.    
SUNDAY
 
PARTLY SUNNY. AREAS OF FOG IN THE MORNING. HIGHS IN THE  
MID 60S. LIGHT WINDS BECOMING NORTHWEST UP TO 5 MPH IN THE  
AFTERNOON.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHEAST  
WINDS UP TO 10 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTHEAST WINDS UP TO  
5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S.  
HIGHS IN THE MID 70S.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 40S.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS IN THE  
UPPER 70S. LOWS IN THE UPPER 40S.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.  
 

 
TEMPERATURE / PRECIPITATION  
 
BOZEMAN AIRPORT 59 42 66 / 100 60 10  
BOZEMAN MSU 57 43 64 / 100 70 20  
 

 
 
MTZ330-192200-  
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-  
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,  
AND RAYNOLDS PASS  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
PATCHY FOG IN THE MORNING. SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING. RAIN SHOWERS THROUGH THE DAY.  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 44 TO 54.  
SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO THE NORTH IN THE  
AFTERNOON. CHANCE OF PRECIPITATION NEAR 100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF  
RAIN AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. LOWS 35 TO 41.  
NORTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
SUNDAY
 
NOT AS COOL. PARTLY SUNNY. PATCHY FOG IN THE MORNING.  
HIGHS 50 TO 60. NORTHWEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS 34 TO 40. WEST WINDS UP TO  
5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.    
MONDAY
 
WARMER, SUNNY. HIGHS 58 TO 68. SOUTH WINDS UP TO 5 MPH  
SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS 38 TO 44. HIGHS  
59 TO 69.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 39 TO 45.    
WEDNESDAY THROUGH THURSDAY NIGHT
 
MOSTLY CLEAR. HIGHS 60 TO 71.  
LOWS 39 TO 48.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 61 TO 71.  
 

 
TEMPERATURE / PRECIPITATION  
 
WEST YELLOWSTONE 57 31 61 / 70 40 10  
 

 
 
MTZ327-192200-  
NORTHWEST BEAVERHEAD COUNTY-  
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,  
AND CHIEF JOSEPH PASS  
336 AM MDT SAT SEP 19 2026  
   
..FLASH FLOOD WATCH IN EFFECT THROUGH THIS AFTERNOON
 
 
   
TODAY
 
PATCHY FOG IN THE MORNING. RAIN LIKELY IN THE MORNING,  
THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY IN  
THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE  
IN THE AFTERNOON. HIGHS 45 TO 55. NORTH WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION 70 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE  
EVENING. PATCHY FOG THROUGH THE NIGHT. LOWS 32 TO 40. NORTHEAST  
WINDS UP TO 5 MPH.    
SUNDAY
 
WARMER. MOSTLY SUNNY. AREAS OF FOG IN THE MORNING.  
HIGHS 55 TO 65. WEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 33 TO 41. NORTH WINDS UP TO  
5 MPH SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT.    
MONDAY
 
SUNNY. HIGHS 60 TO 70. SOUTHWEST WINDS UP TO 10 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS 36 TO 44. HIGHS  
60 TO 70.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 36 TO 44.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 61 TO 72. LOWS  
37 TO 45.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS 38 TO 46. HIGHS  
61 TO 71.  
 

 
 
MTZ328-192200-  
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-  
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
PATCHY FOG IN THE MORNING. RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN RAIN SHOWERS LIKELY  
AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 54 TO 60.  
NORTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION NEAR  
100 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY. A 50 PERCENT CHANCE OF RAIN IN THE  
EVENING. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE LOWER 40S. NORTH  
WINDS UP TO 10 MPH SHIFTING TO THE NORTHWEST AFTER MIDNIGHT.    
SUNDAY
 
WARMER. MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS  
62 TO 68. SOUTHWEST WINDS UP TO 5 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. EAST WINDS  
UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.    
MONDAY
 
SUNNY. HIGHS 69 TO 75. SOUTHWEST WINDS UP TO 5 MPH.    
MONDAY NIGHT AND TUESDAY
 
MOSTLY CLEAR. LOWS IN THE MID 40S.  
HIGHS 70 TO 76.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 40S.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 71 TO 78. LOWS  
IN THE MID 40S.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 40S.  
HIGHS 72 TO 78.  
 

 
TEMPERATURE / PRECIPITATION  
 
DILLON 59 40 67 / 70 30 0  
 

 
 
MTZ329-192200-  
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-  
INCLUDING THE CITY OF MONIDA PASS  
336 AM MDT SAT SEP 19 2026  
   
TODAY
 
PATCHY FOG IN THE MORNING. CHANCE OF RAIN IN THE  
MORNING, THEN RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 47 TO 55. NORTHEAST WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION 70 PERCENT.    
TONIGHT
 
MOSTLY CLOUDY. A 50 PERCENT CHANCE OF RAIN IN THE  
EVENING. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE UPPER 30S. NORTH  
WINDS UP TO 10 MPH.    
SUNDAY
 
NOT AS COOL. PARTLY SUNNY. PATCHY FOG IN THE MORNING.  
HIGHS 54 TO 62. NORTHWEST WINDS UP TO 10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTHEAST  
WINDS UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.    
MONDAY
 
SUNNY. HIGHS 60 TO 68. SOUTH WINDS UP TO 10 MPH.    
MONDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S.    
TUESDAY AND TUESDAY NIGHT
 
PARTLY CLOUDY. HIGHS 62 TO 70. LOWS  
IN THE LOWER 40S.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 63 TO 72. LOWS  
IN THE LOWER 40S.    
THURSDAY NIGHT AND FRIDAY
 
PARTLY CLOUDY. LOWS IN THE MID 40S.  
HIGHS 64 TO 72.  
 

 
 
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