064
FPUS55 KTFX 210632
ZFPTFX
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
1232 AM MDT MON SEP 21 2026
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR .TONIGHT THROUGH TODAY..., TUESDAY, TUESDAY NIGHT, AND
WEDNESDAY.
MTZ301-221000-
EAST GLACIER PARK REGION-
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,
SAINT MARY, MARIAS PASS, AND LOGAN PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 61 TO 71. LOWS 43 TO 48.
SOUTHWEST WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 60 TO 70. SOUTHWEST WINDS 5 TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE MID 40S. SOUTHWEST WINDS 5 TO 15 MPH.
WEDNESDAY
SUNNY. HIGHS 55 TO 65. SOUTHWEST WINDS 10 TO 20 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST
WINDS 5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
THURSDAY
MOSTLY SUNNY. HIGHS 60 TO 70.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A 20 PERCENT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN
THE UPPER 40S.
FRIDAY
PARTLY SUNNY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS
53 TO 63.
FRIDAY NIGHT
COLDER. MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW
LIKELY IN THE EVENING, THEN CHANCE OF RAIN AND SNOW AFTER
MIDNIGHT. LOWS 36 TO 42. CHANCE OF PRECIPITATION 60 PERCENT.
SATURDAY
PARTLY SUNNY. A 40 PERCENT CHANCE OF RAIN AND SNOW IN
THE MORNING. HIGHS 42 TO 50.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
MID 30S.
SUNDAY
PARTLY SUNNY. HIGHS 44 TO 52.
SUNDAY NIGHT AND MONDAY
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN AND SNOW. LOWS 34 TO 40. HIGHS 44 TO 52.
MTZ307-221000-
SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE CITY OF ROGERS PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 63 TO 73. LOWS 38 TO 46.
SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 61 TO 71. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 42 TO 48. WEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 59 TO 69. SOUTHWEST WINDS 5 TO 15 MPH.
GUSTS UP TO 30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST
WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH IN THE EVENING.
THURSDAY AND THURSDAY NIGHT
PARTLY CLOUDY. HIGHS 64 TO 74.
LOWS IN THE UPPER 40S.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN. HIGHS 57 TO 67. LOWS 36 TO 42.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN SLIGHT CHANCE OF RAIN IN THE AFTERNOON. HIGHS 45 TO
55. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S.
HIGHS 47 TO 57.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
MONDAY
PARTLY SUNNY. HIGHS 45 TO 55.
MTZ302-221000-
NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS IN THE MID 70S. LOWS IN
THE MID 40S. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS
5 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE UPPER 40S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
PARTLY CLOUDY. HIGHS AROUND 70.
LOWS IN THE MID 40S. SOUTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN. HIGHS IN THE UPPER 60S. LOWS IN THE LOWER 40S.
SATURDAY
COOLER. PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN
THE MORNING. HIGHS IN THE MID 50S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. HIGHS IN THE MID 50S.
LOWS IN THE UPPER 30S.
MTZ308-221000-
SOUTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS IN THE UPPER 70S. LOWS IN
THE UPPER 40S. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SOUTHWEST WINDS UP TO 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 50S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. A 20 PERCENT
CHANCE OF RAIN. LOWS IN THE MID 40S. HIGHS IN THE UPPER 50S.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS AROUND 40. HIGHS
AROUND 60.
SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S.
MTZ303-221000-
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG EARLY IN THE MORNING.
HIGHS IN THE MID 70S. LOWS IN THE MID 40S. SOUTHWEST WINDS UP TO
15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
IN THE UPPER 40S. WEST WINDS 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 70S. WEST WINDS 5 TO
15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHWEST WINDS UP TO
15 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS AROUND 70.
FRIDAY NIGHT
WINDY. PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE LOWER
40S.
SATURDAY
COOLER. PARTLY SUNNY. HIGHS IN THE UPPER 50S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 30S.
SUNDAY THROUGH MONDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 50S.
LOWS AROUND 40.
TEMPERATURE / PRECIPITATION
CUT BANK 44 77 47 73 / 0 0 0 0
MTZ304-221000-
EASTERN TOOLE AND LIBERTY-
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,
LOTHAIR, AND WHITLASH
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG. HIGHS IN THE MID
70S. LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHWEST WINDS UP TO
5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. WEST WINDS UP TO
15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST
WINDS UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. HIGHS 70 TO 79. LOWS IN
THE LOWER 50S.
FRIDAY NIGHT
BREEZY. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE
MID 40S.
SATURDAY AND SATURDAY NIGHT
COOLER. PARTLY CLOUDY. HIGHS 57 TO
63. LOWS AROUND 40.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS IN THE UPPER 50S.
LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
MTZ305-221000-
HILL COUNTY-
INCLUDING THE CITY OF HAVRE
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG. HIGHS IN THE MID
70S. LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP
TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO 5 MPH
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST
WINDS UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
LOWS IN THE LOWER 50S.
FRIDAY NIGHT
BREEZY. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE
MID 40S.
SATURDAY AND SATURDAY NIGHT
COOLER. PARTLY CLOUDY. HIGHS IN
THE LOWER 60S. LOWS IN THE LOWER 40S.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S.
LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
HAVRE 45 80 49 81 / 0 0 0 0
MTZ306-221000-
NORTHERN BLAINE COUNTY-
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,
AND FORT BELKNAP
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG EARLY IN THE
MORNING. HIGHS IN THE LOWER 70S. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS 5 TO 20 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
5 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
BREEZY. PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
RAIN. LOWS IN THE UPPER 40S.
SATURDAY AND SATURDAY NIGHT
COOLER. PARTLY CLOUDY. HIGHS IN
THE MID 60S. LOWS IN THE LOWER 40S.
SUNDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S.
SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
MTZ309-221000-
EASTERN PONDERA AND EASTERN TETON-
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. HIGHS
IN THE UPPER 70S. LOWS IN THE MID 40S. SOUTHWEST WINDS UP TO
10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
UP TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. WEST WINDS UP TO 10 MPH
SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
LOWS AROUND 50.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
SATURDAY NIGHT THROUGH MONDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 60S.
MTZ310-221000-
WESTERN AND CENTRAL CHOUTEAU COUNTY-
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG. HIGHS IN THE UPPER
70S. LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO 15 MPH WITH
GUSTS TO AROUND 35 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP
TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. EAST WINDS UP TO
5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. WEST WINDS UP
TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE UPPER 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
MTZ311-221000-
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE CITY OF ROCKY BOY
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG. HIGHS 69 TO 75.
LOWS 46 TO 51. SOUTHEAST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND
35 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP
TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHEAST
WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 74 TO 80. WEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. WEST
WINDS UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 76 TO 84. LOWS IN
THE MID 50S.
FRIDAY NIGHT
BREEZY. PARTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN IN THE EVENING. LOWS IN THE UPPER 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS 61 TO 67.
SATURDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
SUNDAY
PARTLY SUNNY. HIGHS 59 TO 65.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS 60 TO 66.
MTZ312-221000-
CASCADE COUNTY BELOW 5000FT-
INCLUDING THE CITY OF GREAT FALLS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS IN THE UPPER 70S. LOWS IN
THE UPPER 40S. SOUTH WINDS UP TO 10 MPH WITH GUSTS TO AROUND
25 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 50. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO
15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. SOUTHWEST WINDS
5 TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE LOWER
40S.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
GREAT FALLS ARPT 47 80 49 80 / 0 0 0 0
MTZ313-221000-
JUDITH BASIN COUNTY AND JUDITH GAP-
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,
BENCHLAND, HOBSON, AND MOCCASIN
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. HIGHS
IN THE MID 70S. LOWS 41 TO 48. SOUTH WINDS UP TO 15 MPH WITH
GUSTS TO AROUND 35 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
UP TO 10 MPH SHIFTING TO THE EAST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS AROUND 80. LOWS IN
THE LOWER 50S.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. A 20 PERCENT
CHANCE OF RAIN. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN MOSTLY CLOUDY WITH CHANCE OF RAIN AFTER MIDNIGHT.
LOWS IN THE UPPER 30S. CHANCE OF RAIN 30 PERCENT.
SUNDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
CHANCE OF RAIN 30 PERCENT.
MONDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS IN
THE MID 60S.
MTZ314-221000-
FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF HILGER AND LEWISTOWN
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG. HIGHS IN THE MID
70S. LOWS 44 TO 50. SOUTH WINDS UP TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
UP TO 5 MPH SHIFTING TO THE EAST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHEAST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. SOUTH
WINDS UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 80S.
LOWS IN THE MID 50S.
FRIDAY NIGHT
BREEZY. PARTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN IN THE EVENING. LOWS IN THE UPPER 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
SUNDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS IN
THE MID 60S.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE MID 40S.
CHANCE OF RAIN 30 PERCENT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
LEWISTOWN 43 79 48 78 / 0 0 10 10
MTZ315-221000-
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,
AND MACDONALD PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 65 TO 73. LOWS 41 TO 47.
SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 65 TO 73. SOUTHWEST WINDS UP TO
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 64 TO 72. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SOUTHWEST WINDS UP TO 10 MPH.
THURSDAY
SUNNY. HIGHS 69 TO 77.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 47 TO 53. HIGHS
63 TO 71.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
COOLER. PARTLY CLOUDY WITH
A 20 PERCENT CHANCE OF RAIN. LOWS 37 TO 44. HIGHS 51 TO 61.
SUNDAY
PARTLY SUNNY. HIGHS 53 TO 61.
SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS 36 TO 42.
MONDAY
MOSTLY SUNNY. HIGHS 51 TO 59.
MTZ316-221000-
GATES OF THE MOUNTAINS-
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 71 TO 77. LOWS IN THE
UPPER 40S. SOUTH WINDS UP TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 72 TO 78. SOUTH WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHWEST WINDS UP TO
10 MPH.
WEDNESDAY
SUNNY. HIGHS 71 TO 77. SOUTHWEST WINDS UP TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. SOUTHWEST WINDS
UP TO 10 MPH.
THURSDAY
SUNNY. HIGHS 75 TO 81.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS 70 TO 76.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. A 20 PERCENT
CHANCE OF RAIN. LOWS IN THE MID 40S. HIGHS 56 TO 64.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
SUNDAY
PARTLY SUNNY. HIGHS 59 TO 65.
SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS 58 TO 64.
MTZ317-221000-
LITTLE BELT AND HIGHWOOD MOUNTAINS-
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 64 TO 72. LOWS 38 TO 49.
SOUTH WINDS UP TO 10 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 66 TO 74. SOUTHWEST WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS 45 TO 51. SOUTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 65 TO 73. SOUTHWEST WINDS UP TO 10 MPH.
GUSTS UP TO 25 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 51. SOUTH WINDS UP TO
10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 69 TO 77. LOWS
48 TO 56.
FRIDAY
MOSTLY SUNNY. HIGHS 67 TO 75.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. A 20 PERCENT
CHANCE OF RAIN. LOWS 41 TO 47. HIGHS 53 TO 61.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS 35 TO 41.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN. HIGHS 55 TO 61. LOWS 37 TO 43.
MONDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
52 TO 60.
MTZ318-221000-
SNOWY AND JUDITH MOUNTAINS-
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG. HIGHS 63 TO 71. LOWS
40 TO 46. SOUTH WINDS UP TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 68 TO 76. SOUTH WINDS UP TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS 68 TO 76. WEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH
WINDS UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 71 TO 79. LOWS IN
THE LOWER 50S.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS 57 TO 65.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
SUNDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
55 TO 63.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN.
LOWS AROUND 40.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS 55 TO 63.
MTZ319-221000-
HELENA VALLEY-
INCLUDING THE CITY OF HELENA
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG EARLY IN THE MORNING.
HIGHS IN THE MID 70S. LOWS IN THE MID 40S. SOUTHEAST WINDS UP TO
10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
UP TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTH WINDS UP TO 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST
WINDS UP TO 5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER
80S. LOWS AROUND 50.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 60S.
SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
HELENA 44 77 49 78 / 0 0 10 0
MTZ320-221000-
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,
BOZEMAN PASS, AND DEEP CREEK PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 62 TO 70. LOWS 40 TO 46.
SOUTHEAST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 64 TO 72. SOUTHWEST WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS UP TO 5 MPH.
WEDNESDAY
SUNNY. HIGHS 64 TO 72. SOUTHWEST WINDS UP TO 10 MPH
WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH
WINDS UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 66 TO 76. LOWS
AROUND 50.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. A 20 PERCENT
CHANCE OF RAIN. LOWS IN THE MID 40S. HIGHS 54 TO 64.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
SUNDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
54 TO 64.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER 30S.
CHANCE OF RAIN 40 PERCENT.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS 52 TO 62.
MTZ321-221000-
MEAGHER COUNTY VALLEYS-
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,
AND WHITE SULPHUR SPRINGS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG. HIGHS AROUND 70.
LOWS AROUND 40. SOUTHEAST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP
TO 5 MPH SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST
WINDS UP TO 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS
UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS IN THE MID 70S.
LOWS IN THE UPPER 40S.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
SUNDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS IN
THE LOWER 60S.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER 30S.
CHANCE OF RAIN 30 PERCENT.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE LOWER 60S.
MTZ322-221000-
ELKHORN AND BOULDER MOUNTAINS-
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,
WICKES, ELK PARK PASS, AND HOMESTAKE PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 63 TO 71. LOWS 37 TO 47.
SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. HIGHS 63 TO 71. SOUTH WINDS UP TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
42 TO 48. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
MOSTLY CLEAR. HIGHS 64 TO 72.
LOWS 43 TO 49. SOUTH WINDS UP TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 67 TO 75. LOWS
46 TO 52.
FRIDAY
MOSTLY SUNNY. HIGHS 65 TO 73.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
COOLER. PARTLY CLOUDY WITH
A 20 PERCENT CHANCE OF RAIN. LOWS 34 TO 46. HIGHS 54 TO 62.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
RAIN. HIGHS 55 TO 63. LOWS 34 TO 42.
MONDAY
MOSTLY SUNNY. HIGHS 52 TO 62.
MTZ323-221000-
CANYON FERRY AREA-
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG EARLY IN THE MORNING.
HIGHS IN THE LOWER 70S. LOWS 43 TO 49. SOUTHEAST WINDS UP TO
10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 46 TO 52. SOUTH WINDS UP TO 5 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE MID
70S. LOWS 46 TO 52. SOUTH WINDS UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 70S.
LOWS 48 TO 54.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS 39 TO 45.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 60S.
MTZ324-221000-
MISSOURI HEADWATERS-
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,
PONY, AND WHITEHALL
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER 70S. LOWS IN
THE MID 40S. SOUTHWEST WINDS UP TO 5 MPH.
TUESDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. HIGHS IN THE MID 70S. SOUTHWEST WINDS UP TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
IN THE MID 40S. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE MID
70S. LOWS IN THE UPPER 40S. SOUTHWEST WINDS UP TO 5 MPH WITH
GUSTS TO AROUND 25 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 70S.
LOWS IN THE UPPER 40S.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS AROUND 40.
SUNDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS IN
THE UPPER 60S.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS AROUND 40.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 60S.
MTZ325-221000-
MADISON RIVER VALLEY-
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,
AND NORRIS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG EARLY IN THE MORNING.
HIGHS IN THE LOWER 70S. LOWS 37 TO 45. SOUTH WINDS UP TO 10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP
TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS 42 TO 48. SOUTH WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH
WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
THURSDAY THROUGH FRIDAY
BREEZY. MOSTLY CLEAR. HIGHS IN THE
UPPER 70S. LOWS AROUND 50.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. A 20 PERCENT
CHANCE OF RAIN. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN MOSTLY CLOUDY WITH CHANCE OF RAIN AFTER MIDNIGHT.
LOWS AROUND 40. CHANCE OF RAIN 30 PERCENT.
SUNDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS IN
THE UPPER 60S.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 60S.
MTZ326-221000-
GALLATIN VALLEY-
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG EARLY IN THE MORNING.
HIGHS IN THE LOWER 70S. LOWS 40 TO 46. SOUTHEAST WINDS UP TO
10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO
5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE UPPER 40S. SOUTH WINDS UP TO
5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO 5 MPH
SHIFTING TO THE WEST IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH
WINDS UP TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE UPPER
70S. LOWS IN THE UPPER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. A 20 PERCENT
CHANCE OF RAIN. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF RAIN. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. A 30 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
BOZEMAN AIRPORT 40 75 45 76 / 0 0 10 0
BOZEMAN MSU 42 74 48 74 / 0 0 10 0
MTZ330-221000-
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,
AND RAYNOLDS PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG EARLY IN THE
MORNING. HIGHS 57 TO 67. LOWS 34 TO 43. SOUTH WINDS UP TO 10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS 58 TO 68. SOUTH WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
39 TO 45. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF SHOWERS
40 PERCENT.
WEDNESDAY
SUNNY. HIGHS 58 TO 68. SOUTHWEST WINDS UP TO 10 MPH
WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 47. SOUTH WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 60 TO 72. LOWS
42 TO 50.
FRIDAY NIGHT THROUGH SUNDAY
PARTLY CLOUDY WITH A 20 PERCENT
CHANCE OF RAIN. LOWS 35 TO 45. HIGHS 53 TO 63.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS 34 TO 40.
CHANCE OF PRECIPITATION 40 PERCENT.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN AND SNOW IN
THE MORNING. HIGHS 49 TO 59.
TEMPERATURE / PRECIPITATION
WEST YELLOWSTONE 28 68 34 67 / 0 0 30 10
MTZ327-221000-
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,
AND CHIEF JOSEPH PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT.
HIGHS 59 TO 69. LOWS 32 TO 44. SOUTH WINDS UP TO 10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS 59 TO 69. SOUTHWEST WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
36 TO 44. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 60 TO 70. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 38 TO 46. SOUTH WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
THURSDAY
SUNNY. HIGHS 64 TO 74.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 41 TO 47. HIGHS
59 TO 69.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF RAIN. LOWS 33 TO 41. HIGHS 52 TO 62.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 30 TO 38.
SUNDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 52 TO 62.
SUNDAY NIGHT
MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN AND SNOW
AFTER MIDNIGHT. LOWS 28 TO 36. CHANCE OF PRECIPITATION
20 PERCENT.
MONDAY
MOSTLY SUNNY. HIGHS 49 TO 59.
MTZ328-221000-
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. HIGHS 67 TO 73. LOWS 39 TO 45.
SOUTH WINDS UP TO 10 MPH.
TUESDAY
PARTLY SUNNY. HIGHS 68 TO 74. SOUTHWEST WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE MID 40S. SOUTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY AND WEDNESDAY NIGHT
MOSTLY CLEAR. HIGHS 70 TO 76.
LOWS IN THE MID 40S. SOUTH WINDS UP TO 15 MPH WITH GUSTS TO
AROUND 30 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 73 TO 79. LOWS
IN THE UPPER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS 71 TO 77.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE LOWER 40S.
SATURDAY
MOSTLY SUNNY. HIGHS 64 TO 70.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A 20 PERCENT CHANCE OF RAIN AFTER MIDNIGHT. LOWS
AROUND 40.
SUNDAY
PARTLY SUNNY. HIGHS 63 TO 69.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS 60 TO 66.
TEMPERATURE / PRECIPITATION
DILLON 40 73 42 75 / 0 10 20 0
MTZ329-221000-
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-
INCLUDING THE CITY OF MONIDA PASS
1232 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. AREAS
OF FOG EARLY IN THE MORNING. HIGHS 59 TO 67. LOWS 36 TO 43. SOUTH
WINDS UP TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. HIGHS 59 TO 67. SOUTH WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A 40 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE LOWER 40S. SOUTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 61 TO 69. SOUTH WINDS 5 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTH
WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
THURSDAY AND THURSDAY NIGHT
BREEZY. MOSTLY CLEAR. HIGHS 64 TO
72. LOWS IN THE MID 40S.
FRIDAY
BREEZY. MOSTLY SUNNY. HIGHS 62 TO 70.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE LOWER 40S.
SATURDAY
MOSTLY SUNNY. HIGHS 56 TO 64.
SATURDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
AFTER MIDNIGHT. LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 56 TO 64.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 30S.
MONDAY
MOSTLY SUNNY. HIGHS 52 TO 60.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page