278
FPUS55 KTFX 170937
ZFPTFX
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
336 AM MDT MON AUG 17 2026
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR TODAY, TONIGHT, AND TUESDAY.
MTZ301-172200-
EAST GLACIER PARK REGION-
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,
SAINT MARY, MARIAS PASS, AND LOGAN PASS
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. HIGHS 61 TO 71. WEST WINDS
UP TO 15 MPH. CHANCE OF PRECIPITATION 40 PERCENT.
TONIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE EVENING. LOWS IN THE LOWER 50S. WEST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 62 TO 72. SOUTHWEST WINDS 5 TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50. SOUTHWEST WINDS
5 TO 15 MPH.
WEDNESDAY
SUNNY. HIGHS 63 TO 73. WEST WINDS 5 TO 15 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS AROUND 50.
HIGHS 65 TO 73.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS 70 TO 78.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY
WITH A 20 PERCENT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN
THE MID 50S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS 67 TO 77. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
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. CHANCE OF PRECIPITATION 30 PERCENT.
SUNDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN SHOWERS.
HIGHS 57 TO 67.
MTZ307-172200-
SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE CITY OF ROGERS PASS
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS 64 TO 74. WEST WINDS UP TO 15 MPH. CHANCE OF PRECIPITATION
20 PERCENT.
TONIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE EVENING. LOWS 48 TO 54. WEST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 63 TO 73. WEST WINDS UP TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 51. WEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY
SUNNY. HIGHS 65 TO 75. WEST WINDS 5 TO 15 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 46 TO 52.
HIGHS 68 TO 78.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 49 TO 55. HIGHS
71 TO 81.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS. LOWS 52 TO 58.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 69 TO 79. CHANCE OF
PRECIPITATION 30 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS 48 TO 54. CHANCE OF PRECIPITATION
40 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE MORNING. HIGHS 61 TO 71.
MTZ302-172200-
NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. HIGHS IN THE MID 70S. WEST
WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON. CHANCE
OF PRECIPITATION 50 PERCENT.
TONIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE EVENING. LOWS IN THE LOWER 50S. WEST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS UP TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. WEST WINDS
5 TO 15 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. WEST WINDS 10 TO
15 MPH.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN
THE LOWER 50S. HIGHS IN THE MID 70S.
FRIDAY
SUNNY. HIGHS AROUND 80.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE MID 50S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS IN THE LOWER 50S. CHANCE OF PRECIPITATION
40 PERCENT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
MTZ308-172200-
SOUTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS UP TO
10 MPH.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. WEST WINDS
UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE LOWER 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE MID 80S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS. LOWS IN THE UPPER
50S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE MID 80S. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID
50S. CHANCE OF PRECIPITATION 40 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S.
MTZ303-172200-
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS IN THE MID 70S. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
TONIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS. LOWS IN THE LOWER 50S. NORTH WINDS 5 TO 10 MPH WITH
GUSTS TO AROUND 25 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. WEST WINDS
5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
15 MPH.
WEDNESDAY NIGHT THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE MID 50S.
SATURDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE MORNING. HIGHS IN THE LOWER 80S.
SATURDAY NIGHT
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
MID 50S. CHANCE OF PRECIPITATION 40 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE MORNING. HIGHS IN THE MID 70S.
TEMPERATURE / PRECIPITATION
CUT BANK 76 50 77 / 30 20 10
MTZ304-172200-
EASTERN TOOLE AND LIBERTY-
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,
LOTHAIR, AND WHITLASH
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS 75 TO 81. EAST WINDS UP TO 10 MPH SHIFTING TO THE WEST IN
THE AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
TONIGHT
MOSTLY CLOUDY WITH SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. NORTHEAST WINDS UP
TO 10 MPH. GUSTS UP TO 25 MPH IN THE EVENING. CHANCE OF
PRECIPITATION 20 PERCENT.
TUESDAY
PARTLY SUNNY. HIGHS 76 TO 82. EAST WINDS UP TO 5 MPH
SHIFTING TO THE SOUTH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 79 TO 85. WEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE MID
50S. HIGHS 78 TO 87.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE UPPER 50S.
SATURDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE MORNING. HIGHS 81 TO 87.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. CHANCE OF
PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN SHOWERS.
HIGHS 76 TO 82.
MTZ305-172200-
HILL COUNTY-
INCLUDING THE CITY OF HAVRE
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN
THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
AFTERNOON. HIGHS IN THE UPPER 70S. NORTHEAST WINDS UP TO 10 MPH
SHIFTING TO THE WEST IN THE AFTERNOON. CHANCE OF PRECIPITATION
20 PERCENT.
TONIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE LOWER 50S. NORTH WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH IN
THE EVENING. CHANCE OF PRECIPITATION 20 PERCENT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTHEAST WINDS
UP TO 5 MPH SHIFTING TO THE SOUTH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR
AFTER MIDNIGHT. LOWS IN THE LOWER 50S. SOUTH WINDS UP TO 10 MPH.
CHANCE OF PRECIPITATION 30 PERCENT.
WEDNESDAY
SUNNY. HIGHS IN THE MID 80S. WEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE MID
50S. HIGHS IN THE MID 80S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. CHANCE OF
PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN SHOWERS.
HIGHS IN THE LOWER 80S.
TEMPERATURE / PRECIPITATION
HAVRE 82 53 83 / 20 20 10
MTZ306-172200-
NORTHERN BLAINE COUNTY-
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,
AND FORT BELKNAP
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
NORTH WINDS UP TO 10 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
TONIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE EVENING. PATCHY FOG AFTER MIDNIGHT. LOWS IN THE LOWER 50S.
NORTH WINDS UP TO 10 MPH SHIFTING TO THE NORTHEAST AFTER
MIDNIGHT.
TUESDAY
PARTLY SUNNY IN THE MORNING THEN CLEARING. PATCHY FOG
IN THE MORNING. HIGHS AROUND 80. EAST WINDS UP TO 5 MPH SHIFTING
TO THE SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS IN THE LOWER 50S. SOUTH WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 80S. WEST WINDS UP TO
15 MPH.
WEDNESDAY NIGHT THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE MID
50S. HIGHS 81 TO 87.
FRIDAY NIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE UPPER 50S.
SATURDAY
BREEZY. PARTLY SUNNY. HIGHS IN THE MID 80S.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 50S. CHANCE OF
PRECIPITATION 40 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE MORNING. HIGHS IN THE LOWER 80S.
MTZ309-172200-
EASTERN PONDERA AND EASTERN TETON-
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS AROUND 80. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
TONIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE WEST AFTER
MIDNIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS UP TO
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE LOWER 50S. NORTHWEST WINDS UP
TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE LOWER 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE MID 80S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE MID 50S.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE MID 80S. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. CHANCE OF
PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN SHOWERS.
HIGHS AROUND 80.
MTZ310-172200-
WESTERN AND CENTRAL CHOUTEAU COUNTY-
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS UP TO
10 MPH.
TONIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN SHOWERS
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
MID 50S. NORTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH
SHIFTING TO THE SOUTHEAST AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS UP
TO 5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT.
LOWS IN THE MID 50S. SOUTH WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 80S. WEST WINDS UP TO
15 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE MID
50S. HIGHS IN THE MID 80S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S.
FRIDAY
SUNNY. HIGHS IN THE UPPER 80S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS AROUND 60.
SATURDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE UPPER 80S.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 50S. CHANCE OF
PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S.
MTZ311-172200-
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE CITY OF ROCKY BOY
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. HIGHS 75 TO 81. NORTHWEST
WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TONIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE EVENING. LOWS IN THE MID 50S. NORTH WINDS UP TO 10 MPH
SHIFTING TO THE EAST AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 76 TO 82. SOUTHEAST WINDS UP TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS IN THE MID 50S. SOUTH WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 79 TO 85. WEST WINDS UP TO 15 MPH.
WEDNESDAY NIGHT THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER
50S. HIGHS 81 TO 88.
FRIDAY NIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS IN THE LOWER 60S.
SATURDAY
PARTLY SUNNY. HIGHS 83 TO 89.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. LOWS AROUND 60. CHANCE OF
PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. HIGHS 79 TO 85.
MTZ312-172200-
CASCADE COUNTY BELOW 5000FT-
INCLUDING THE CITY OF GREAT FALLS
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS LATE
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS UP TO
10 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE EVENING. LOWS IN THE MID 50S. NORTHEAST WINDS 5 TO 10 MPH
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS 5 TO
15 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE MID
50S. HIGHS IN THE MID 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 80S.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE UPPER 50S.
SATURDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 80S.
SATURDAY NIGHT
MOSTLY CLOUDY. A 50 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE UPPER 50S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S.
TEMPERATURE / PRECIPITATION
GREAT FALLS ARPT 82 55 83 / 20 20 20
MTZ313-172200-
JUDITH BASIN COUNTY AND JUDITH GAP-
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,
BENCHLAND, HOBSON, AND MOCCASIN
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S. WEST WINDS UP TO 10 MPH.
GUSTS UP TO 25 MPH IN THE AFTERNOON.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE MID 50S. NORTHWEST WINDS UP TO 10 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION 20 PERCENT.
TUESDAY
PARTLY 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 UPPER 70S. SOUTHWEST
WINDS UP TO 5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. SOUTH WINDS
5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
15 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE LOWER 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 80S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS. LOWS IN THE UPPER
50S.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE UPPER 80S. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. CHANCE OF
PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S.
MTZ314-172200-
FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF HILGER AND LEWISTOWN
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS AROUND 80. NORTHWEST WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
TONIGHT
MOSTLY CLOUDY WITH SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 50S. NORTHWEST WINDS UP
TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 80. SOUTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE EAST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS 51 TO 57. SOUTH WINDS UP TO
10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 80S. WEST WINDS UP TO
15 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 53 TO 59.
HIGHS IN THE MID 80S.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND
60. HIGHS IN THE UPPER 80S.
SATURDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 80S.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE
OF RAIN SHOWERS AFTER MIDNIGHT. LOWS 57 TO 63. CHANCE OF
PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE MID 80S.
TEMPERATURE / PRECIPITATION
LEWISTOWN 77 52 77 / 20 30 40
MTZ315-172200-
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,
AND MACDONALD PASS
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS 69 TO 77. SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO THE WEST
5 TO 15 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
TONIGHT
MOSTLY CLOUDY. LOWS 51 TO 57. WEST WINDS UP TO 10 MPH.
GUSTS UP TO 25 MPH IN THE EVENING.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 68 TO 76. WEST WINDS UP TO 10 MPH WITH GUSTS
TO AROUND 25 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 53. SOUTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 69 TO 79. WEST WINDS UP TO 15 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 47 TO 55.
HIGHS 74 TO 84.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 50 TO 58. HIGHS
76 TO 86.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS. LOWS 53 TO 61.
SATURDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 73 TO 83. CHANCE
OF PRECIPITATION 50 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS 49 TO 57. CHANCE OF PRECIPITATION
40 PERCENT.
SUNDAY
SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. HIGHS 67 TO 75.
MTZ316-172200-
GATES OF THE MOUNTAINS-
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS LATE
IN THE AFTERNOON. HIGHS 74 TO 82. SOUTHWEST WINDS UP TO 10 MPH
SHIFTING TO THE WEST WITH GUSTS TO AROUND 25 MPH IN THE
AFTERNOON.
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 50S.
WEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 30 PERCENT.
TUESDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 74 TO 82. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 76 TO 84. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE MID
50S. HIGHS 80 TO 88.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS 81 TO 89.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE UPPER 50S.
SATURDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 80 TO 88. CHANCE
OF PRECIPITATION 40 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE MID 50S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS 74 TO 82.
MTZ317-172200-
LITTLE BELT AND HIGHWOOD MOUNTAINS-
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 67 TO 75. WEST WINDS UP TO 15 MPH. GUSTS UP
TO 30 MPH IN THE AFTERNOON.
TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE EVENING. LOWS 51 TO 57. NORTHWEST WINDS UP TO 10 MPH WITH
GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
TUESDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 67 TO 75. SOUTHWEST
WINDS UP TO 10 MPH SHIFTING TO THE WEST IN THE AFTERNOON. GUSTS
UP TO 25 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS 48 TO 54. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY
SUNNY. HIGHS 70 TO 78. WEST WINDS 5 TO 15 MPH. GUSTS
UP TO 30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 49 TO 55.
HIGHS 73 TO 81.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 52 TO 58. HIGHS
76 TO 84.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS. LOWS 54 TO 62.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS 75 TO 83. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 52 TO 58.
CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 69 TO 77.
MTZ318-172200-
SNOWY AND JUDITH MOUNTAINS-
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF THUNDERSTORMS
LATE IN THE AFTERNOON. HIGHS 69 TO 75. WEST WINDS UP TO 10 MPH.
GUSTS UP TO 25 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. NORTHWEST WINDS
UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 50 PERCENT.
TUESDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 68 TO 74. SOUTHWEST WINDS
UP TO 5 MPH SHIFTING TO THE WEST AROUND 5 MPH IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
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 LOWER 50S. SOUTH WINDS 5 TO 10 MPH.
CHANCE OF PRECIPITATION 40 PERCENT.
WEDNESDAY
SUNNY. HIGHS 72 TO 78. WEST WINDS UP TO 15 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 50 TO 56.
HIGHS 75 TO 81.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS 77 TO 83.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY
WITH A 20 PERCENT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
56 TO 62.
SATURDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 77 TO 85.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE UPPER 50S. CHANCE OF SHOWERS 40 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS 73 TO 79.
MTZ319-172200-
HELENA VALLEY-
INCLUDING THE CITY OF HELENA
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS LATE
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. EAST WINDS UP TO 5 MPH
SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. LOWS IN THE MID 50S. WEST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS AROUND 50. SOUTH WINDS UP TO
10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS UP TO
5 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE UPPER 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 80S.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE MID 50S.
SATURDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S.
CHANCE OF PRECIPITATION 40 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE MID 50S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S.
TEMPERATURE / PRECIPITATION
HELENA 83 57 82 / 20 20 30
MTZ320-172200-
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,
BOZEMAN PASS, AND DEEP CREEK PASS
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN THE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS 68 TO 76. WEST WINDS UP TO 15 MPH. GUSTS UP TO 30 MPH IN
THE AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE MID 50S. WEST WINDS UP TO 10 MPH WITH GUSTS TO AROUND
25 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT.
TUESDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 67 TO 75. WEST WINDS UP TO 10 MPH. GUSTS UP
TO 30 MPH IN THE AFTERNOON.
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 LOWER 50S. SOUTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF PRECIPITATION
40 PERCENT.
WEDNESDAY
SUNNY. HIGHS 68 TO 78. SOUTHWEST WINDS UP TO 10 MPH
SHIFTING TO THE WEST WITH GUSTS TO AROUND 35 MPH IN THE
AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS 73 TO 83.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS 76 TO 86.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE UPPER 50S.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS 75 TO 83. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID
50S. CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 68 TO 78.
MTZ321-172200-
MEAGHER COUNTY VALLEYS-
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,
AND WHITE SULPHUR SPRINGS
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 70S. WEST WINDS UP TO 15 MPH.
GUSTS UP TO 30 MPH IN THE AFTERNOON.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE LOWER 50S. WEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND
25 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT.
TUESDAY
MOSTLY SUNNY. 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.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S. WEST WINDS
5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTH 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.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS AROUND 50.
HIGHS IN THE LOWER 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE MID 80S.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE MID 50S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE LOWER 80S. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER
50S. CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S.
MTZ322-172200-
ELKHORN AND BOULDER MOUNTAINS-
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,
WICKES, ELK PARK PASS, AND HOMESTAKE PASS
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 69 TO 77. WEST WINDS UP TO 10 MPH. GUSTS UP
TO 25 MPH IN THE AFTERNOON.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
51 TO 57. WEST WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH IN THE
EVENING. CHANCE OF PRECIPITATION 20 PERCENT.
TUESDAY
MOSTLY SUNNY. A 50 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 68 TO 76. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS 46 TO 52. WEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 40 PERCENT.
WEDNESDAY
SUNNY. HIGHS 70 TO 80. WEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 48 TO 54.
HIGHS 74 TO 84.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 51 TO 59. HIGHS
77 TO 85.
FRIDAY NIGHT
MOSTLY CLOUDY. A 40 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS 54 TO 60.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
74 TO 82. CHANCE OF PRECIPITATION 50 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 49 TO 57.
CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 69 TO 77.
MTZ323-172200-
CANYON FERRY AREA-
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN
THE AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
AFTERNOON. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE NORTHWEST IN THE AFTERNOON. CHANCE OF
PRECIPITATION 20 PERCENT.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE UPPER 50S. NORTHWEST WINDS UP TO 10 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT. CHANCE OF PRECIPITATION 20 PERCENT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE WEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS 49 TO 55. WEST WINDS UP TO 10 MPH SHIFTING
TO THE SOUTH AFTER MIDNIGHT. CHANCE OF PRECIPITATION 40 PERCENT.
WEDNESDAY
SUNNY. HIGHS AROUND 80. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE WEST WITH GUSTS TO AROUND 25 MPH IN THE
AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 51 TO 57.
HIGHS IN THE MID 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER
50S. HIGHS IN THE UPPER 80S.
FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS 55 TO 61.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE MID 80S. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID
50S. CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 80.
MTZ324-172200-
MISSOURI HEADWATERS-
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,
PONY, AND WHITEHALL
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 80. SOUTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE WEST WITH GUSTS TO AROUND 25 MPH IN THE
AFTERNOON.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE
MID 50S. WEST WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH IN THE
EVENING. CHANCE OF PRECIPITATION 40 PERCENT.
TUESDAY
MOSTLY 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. GUSTS UP TO
25 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS AROUND 50. WEST WINDS UP TO 10 MPH. CHANCE
OF PRECIPITATION 40 PERCENT.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE UPPER 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 80S.
FRIDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE UPPER 50S. CHANCE OF SHOWERS 40 PERCENT.
SATURDAY
PARTLY SUNNY. A 40 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 80S.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID
50S. CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S.
MTZ325-172200-
MADISON RIVER VALLEY-
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,
AND NORRIS
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN
THE AFTERNOON. CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO 5 MPH SHIFTING TO THE
WEST IN THE AFTERNOON. CHANCE OF THUNDERSTORMS 50 PERCENT.
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 50S. SOUTH WINDS 5 TO
10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY
PARTLY SUNNY. A 40 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS 45 TO 51. NORTH WINDS 5 TO 10 MPH SHIFTING
TO THE SOUTH AFTER MIDNIGHT. CHANCE OF PRECIPITATION 40 PERCENT.
WEDNESDAY
SUNNY. HIGHS AROUND 80. SOUTH WINDS UP TO 10 MPH
SHIFTING TO THE WEST IN THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 48 TO 54.
HIGHS IN THE MID 80S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS 52 TO 58.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
FRIDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
53 TO 59. CHANCE OF SHOWERS 40 PERCENT.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE MID 80S. CHANCE OF PRECIPITATION 50 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 50 TO 56.
CHANCE OF PRECIPITATION 40 PERCENT.
SUNDAY
MOSTLY SUNNY. A 30 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 80.
MTZ326-172200-
GALLATIN VALLEY-
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS EARLY IN
THE AFTERNOON. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
SOUTH WINDS UP TO 5 MPH SHIFTING TO THE NORTHWEST WITH GUSTS TO
AROUND 25 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 50S. SOUTHEAST WINDS UP
TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS AROUND 50. SOUTH WINDS UP TO 10 MPH. CHANCE
OF PRECIPITATION 40 PERCENT.
WEDNESDAY
SUNNY. HIGHS AROUND 80. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE WEST IN THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS IN THE MID 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 80S.
FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE MID 50S.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE MID 80S. CHANCE OF PRECIPITATION 50 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID
50S. CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S.
TEMPERATURE / PRECIPITATION
BOZEMAN AIRPORT 81 53 80 / 30 30 20
BOZEMAN MSU 78 55 77 / 20 40 30
MTZ330-172200-
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,
AND RAYNOLDS PASS
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF THUNDERSTORMS
LATE IN THE AFTERNOON. HIGHS 64 TO 74. SOUTHWEST WINDS UP TO
15 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. LOWS 47 TO 53. SOUTHWEST WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE EVENING. CHANCE OF
PRECIPITATION 50 PERCENT.
TUESDAY
PARTLY SUNNY. A 50 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 63 TO 73. WEST WINDS UP TO 15 MPH. GUSTS UP
TO 30 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS 41 TO 49. NORTHWEST WINDS UP TO 10 MPH WITH
GUSTS TO AROUND 25 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
SUNNY. HIGHS 65 TO 75. SOUTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE WEST 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH IN
THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 45 TO 53.
HIGHS 70 TO 80.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS 49 TO 57.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 73 TO 83.
FRIDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
51 TO 57. CHANCE OF SHOWERS 40 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 50 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 48 TO 54.
CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
MOSTLY SUNNY. A 30 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 65 TO 75.
TEMPERATURE / PRECIPITATION
WEST YELLOWSTONE 75 43 73 / 30 30 30
MTZ327-172200-
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,
AND CHIEF JOSEPH PASS
336 AM MDT MON AUG 17 2026
TODAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 67 TO 77. SOUTHWEST WINDS UP TO 15 MPH.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS 45 TO
51. NORTHWEST WINDS UP 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 65 TO 75. SOUTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE WEST 5 TO 15 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS 39 TO 49. NORTHWEST WINDS UP
TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS 68 TO 78. SOUTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE WEST 5 TO 15 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 42 TO 52.
HIGHS 72 TO 82.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 57.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 74 TO 84.
FRIDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
47 TO 57. CHANCE OF SHOWERS 40 PERCENT.
SATURDAY
PARTLY SUNNY. A 50 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 70 TO 80.
SATURDAY NIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS 43 TO 53. CHANCE OF PRECIPITATION
30 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 66 TO 76.
MTZ328-172200-
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 74 TO 80. SOUTH WINDS UP TO 10 MPH SHIFTING
TO THE WEST WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE LOWER 50S. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
TUESDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 74 TO 80. WEST WINDS UP TO 10 MPH WITH GUSTS
TO AROUND 25 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS IN THE UPPER 40S. NORTH WINDS 5 TO 10 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS 76 TO 82. SOUTHWEST WINDS UP TO 10 MPH.
GUSTS UP TO 25 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS AROUND 50.
HIGHS 81 TO 87.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 50S.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 82 TO 88.
FRIDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE MID 50S. CHANCE OF SHOWERS 40 PERCENT.
SATURDAY
PARTLY SUNNY. A 50 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 79 TO 85.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER
50S. CHANCE OF PRECIPITATION 40 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 76 TO 82.
TEMPERATURE / PRECIPITATION
DILLON 79 51 78 / 30 30 30
MTZ329-172200-
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-
INCLUDING THE CITY OF MONIDA PASS
336 AM MDT MON AUG 17 2026
TODAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF THUNDERSTORMS
LATE IN THE AFTERNOON. HIGHS 68 TO 76. SOUTH WINDS 5 TO 10 MPH
SHIFTING TO THE WEST 5 TO 15 MPH IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE LOWER 50S. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
TUESDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 67 TO 75. SOUTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE WEST 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH IN
THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS IN THE UPPER 40S. NORTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO
AROUND 25 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS 69 TO 77. SOUTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE WEST 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH IN
THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER
50S. HIGHS 73 TO 81.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 50S.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS 75 TO 83.
FRIDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE MID 50S. CHANCE OF SHOWERS 40 PERCENT.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
72 TO 80. CHANCE OF PRECIPITATION 50 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. A 40 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE LOWER 50S.
SUNDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 68 TO 76. CHANCE OF
PRECIPITATION 40 PERCENT.
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