546
FPUS55 KTFX 220233
ZFPTFX
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
832 PM MDT MON SEP 21 2026
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR THE REST OF TONIGHT, 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
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 60 TO 70. SOUTHWEST WINDS 5 TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST WINDS 5 TO 15 MPH.
GUSTS UP TO 30 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS 55 TO 65. SOUTHWEST WINDS 10 TO
20 MPH WITH GUSTS TO AROUND 35 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SOUTHWEST WINDS 5 TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
THURSDAY
WARMER. MOSTLY SUNNY. HIGHS 61 TO 71.
THURSDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
AFTER MIDNIGHT. LOWS IN THE UPPER 40S.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS 55 TO 65. CHANCE OF
RAIN 50 PERCENT.
FRIDAY NIGHT
BREEZY, COLDER. MOSTLY CLOUDY. CHANCE OF RAIN AND
SNOW LIKELY IN THE EVENING, THEN CHANCE OF RAIN AND SNOW AFTER
MIDNIGHT. LOWS 35 TO 41. CHANCE OF PRECIPITATION 60 PERCENT.
SATURDAY
COOLER. PARTLY SUNNY. CHANCE OF SNOW AND SLIGHT
CHANCE OF RAIN IN THE MORNING, THEN SLIGHT CHANCE OF RAIN AND
SNOW IN THE AFTERNOON. HIGHS 41 TO 49. CHANCE OF PRECIPITATION
40 PERCENT.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 32 TO
40. HIGHS 44 TO 52.
MONDAY
MOSTLY SUNNY. HIGHS 43 TO 53.
MTZ307-221000-
SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE CITY OF ROGERS PASS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE MID 40S. WEST WINDS UP TO
10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS 61 TO 71. SOUTHWEST 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
WITH GUSTS TO AROUND 30 MPH.
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 65 TO 75.
LOWS IN THE UPPER 40S.
FRIDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 58 TO 68.
FRIDAY NIGHT
COLDER. PARTLY CLOUDY. SLIGHT CHANCE OF RAIN IN
THE EVENING, THEN SLIGHT CHANCE OF RAIN AND SNOW AFTER MIDNIGHT.
LOWS 36 TO 42. CHANCE OF PRECIPITATION 20 PERCENT.
SATURDAY
MOSTLY SUNNY. HIGHS 44 TO 54.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S.
HIGHS 47 TO 57.
SUNDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS 34 TO 40.
MONDAY
MOSTLY SUNNY. HIGHS 46 TO 56.
MTZ302-221000-
NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST WINDS
5 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 BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 70. SOUTHWEST WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST
WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLOUDY. LOWS IN THE UPPER
40S. HIGHS IN THE UPPER 60S.
FRIDAY NIGHT
BREEZY. PARTLY CLOUDY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE
LOWER 40S.
SATURDAY THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS IN THE MID
50S. LOWS IN THE UPPER 30S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
MTZ308-221000-
SOUTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. 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 AROUND 50. WEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 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 THROUGH FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
LOWS IN THE LOWER 50S.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
LOWER 40S. HIGHS IN THE LOWER 60S.
MONDAY
MOSTLY 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
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE MID 40S. SOUTHWEST WINDS UP
TO 10 MPH.
TUESDAY
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 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. WEST WINDS 5 TO 15 MPH.
GUSTS UP TO 30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SOUTHWEST WINDS 5 TO 15 MPH.
THURSDAY AND THURSDAY NIGHT
PARTLY CLOUDY. HIGHS IN THE MID
70S. LOWS IN THE UPPER 40S.
FRIDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S.
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. MOSTLY SUNNY. HIGHS IN THE MID 50S.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND
40. HIGHS IN THE UPPER 50S.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 60.
TEMPERATURE / PRECIPITATION
CUT BANK 45 77 48 73 / 0 0 0 0
MTZ304-221000-
EASTERN TOOLE AND LIBERTY-
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,
LOTHAIR, AND WHITLASH
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS 5 TO 15 MPH DECREASING TO UP TO 5 MPH AFTER MIDNIGHT.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. SOUTH WINDS UP TO
5 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
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 72 TO 80. LOWS IN
THE LOWER 50S.
FRIDAY NIGHT
BREEZY. PARTLY CLOUDY. CHANCE OF RAIN IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE
MID 40S. CHANCE OF RAIN 30 PERCENT.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS 55 TO 61.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
LOWER 40S. HIGHS AROUND 60.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
MTZ305-221000-
HILL COUNTY-
INCLUDING THE CITY OF HAVRE
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG EARLY IN THE MORNING.
LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO 15 MPH.
TUESDAY
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE
UPPER 70S. SOUTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS UP TO 5 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS UP TO
15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WEST
WINDS UP TO 10 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS IN THE LOWER
50S. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
BREEZY. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE
MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
LOWER 40S. HIGHS IN THE LOWER 60S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
HAVRE 46 80 49 81 / 0 0 0 0
MTZ306-221000-
NORTHERN BLAINE COUNTY-
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,
AND FORT BELKNAP
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS 10 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
PARTLY SUNNY IN THE MORNING THEN CLEARING. HIGHS IN
THE UPPER 70S. SOUTH WINDS UP TO 5 MPH SHIFTING TO THE WEST IN
THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER
80S. LOWS IN THE MID 50S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
BREEZY. MOSTLY CLOUDY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS IN THE
UPPER 40S.
SATURDAY
BREEZY, COOLER. MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE LOWER 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.
MTZ309-221000-
EASTERN PONDERA AND EASTERN TETON-
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE MID 40S. SOUTHEAST WINDS UP
TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
TUESDAY
SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS UP TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTH
WINDS UP TO 5 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WEST
WINDS UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY. HIGHS AROUND 80. 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 IN THE LOWER 60S.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE
LOWER 40S. HIGHS IN THE LOWER 60S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
MTZ310-221000-
WESTERN AND CENTRAL CHOUTEAU COUNTY-
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS 10 TO 15 MPH DECREASING TO UP TO 10 MPH AFTER MIDNIGHT.
GUSTS UP TO 30 MPH.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP TO
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. EAST WINDS
UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS AROUND 80. WEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. 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 AROUND 80.
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 LOWER 60S.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
MTZ311-221000-
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE CITY OF ROCKY BOY
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
TUESDAY
SUNNY. HIGHS 74 TO 80. SOUTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHEAST
WINDS UP TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS 75 TO 81. 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 AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 78 TO 84. LOWS
IN THE MID 50S.
FRIDAY
MOSTLY SUNNY. HIGHS 76 TO 82.
FRIDAY NIGHT
BREEZY. 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 59 TO 65.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS 60 TO 66.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
MONDAY
MOSTLY SUNNY. HIGHS 61 TO 67.
MTZ312-221000-
CASCADE COUNTY BELOW 5000FT-
INCLUDING THE CITY OF GREAT FALLS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 40S. SOUTH WINDS 5 TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
TUESDAY
SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHEAST
WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO
15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER
80S. LOWS IN THE MID 50S.
FRIDAY
MOSTLY SUNNY. 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 LOWER 60S.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
GREAT FALLS ARPT 49 80 50 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
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 40S. SOUTH WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 35 MPH.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS UP TO
10 MPH SHIFTING TO THE EAST IN THE AFTERNOON.
TUESDAY NIGHT
CLOUDY. LOWS AROUND 50. 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 5 TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 80S.
LOWS IN THE LOWER 50S.
FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN MOSTLY CLOUDY AFTER MIDNIGHT. LOWS AROUND
40.
SUNDAY
MOSTLY SUNNY. 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 40 PERCENT.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 60S.
MTZ314-221000-
FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF HILGER AND LEWISTOWN
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS UP
TO 5 MPH WITH GUSTS TO AROUND 20 MPH SHIFTING TO THE EAST IN THE
AFTERNOON.
TUESDAY NIGHT
CLOUDY. LOWS IN THE LOWER 50S. SOUTHEAST WINDS
UP TO 10 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
WEDNESDAY
PARTLY SUNNY IN THE MORNING THEN CLEARING. HIGHS IN
THE UPPER 70S. WEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. SOUTHWEST
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 AROUND 50.
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
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
LEWISTOWN 45 79 49 78 / 0 0 10 0
MTZ315-221000-
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,
AND MACDONALD PASS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE MID 40S. SOUTHWEST WINDS UP
TO 5 MPH.
TUESDAY
SUNNY IN THE MORNING THEN BECOMING PARTLY SUNNY. HIGHS
66 TO 74. SOUTHWEST WINDS UP TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 43 TO 49. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 65 TO 73. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 50. SOUTHWEST WINDS
UP TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 70 TO 78. LOWS
47 TO 53.
FRIDAY
MOSTLY SUNNY. HIGHS 64 TO 72.
FRIDAY NIGHT
COLDER. PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
RAIN. LOWS 38 TO 44.
SATURDAY
MOSTLY SUNNY. HIGHS 51 TO 59.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS 34 TO 40. HIGHS
54 TO 62.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS 36 TO 42.
MONDAY
MOSTLY SUNNY. HIGHS 52 TO 60.
MTZ316-221000-
GATES OF THE MOUNTAINS-
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 40S. SOUTH WINDS UP
TO 10 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 72 TO 78. SOUTHWEST WINDS UP TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. SOUTHWEST WINDS
UP TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 75 TO 81. LOWS
IN THE LOWER 50S.
FRIDAY
MOSTLY SUNNY. HIGHS 71 TO 77.
FRIDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS 57 TO 63.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS IN THE LOWER
40S. HIGHS 60 TO 66.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS 59 TO 65.
MTZ317-221000-
LITTLE BELT AND HIGHWOOD MOUNTAINS-
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS 42 TO 50. SOUTH WINDS 5 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 44 TO 52. SOUTH WINDS UP TO
10 MPH.
WEDNESDAY
SUNNY. HIGHS 65 TO 73. SOUTHWEST WINDS 5 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 52. SOUTH WINDS UP TO
10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 67 TO 77. LOWS
48 TO 56.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. A 20 PERCENT
CHANCE OF RAIN. LOWS 41 TO 47. HIGHS 54 TO 60.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS 35 TO 41.
SUNDAY
MOSTLY SUNNY. HIGHS 56 TO 62.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS 37 TO 43. CHANCE
OF RAIN 40 PERCENT.
MONDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
53 TO 61.
MTZ318-221000-
SNOWY AND JUDITH MOUNTAINS-
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
TUESDAY
SUNNY. HIGHS 68 TO 76. SOUTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. SOUTHEAST WINDS
UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS 67 TO 75. WEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50. SOUTH WINDS UP
TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 70 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 55 TO 63.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY. HIGHS 57 TO 63.
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 55 TO 63.
MTZ319-221000-
HELENA VALLEY-
INCLUDING THE CITY OF HELENA
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE MID 40S. SOUTH WINDS UP TO
5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST 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 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.
SOUTHWEST WINDS UP TO 5 MPH.
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. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE MID 40S.
SATURDAY
COOLER. MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 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. HIGHS IN THE UPPER 60S.
TEMPERATURE / PRECIPITATION
HELENA 46 78 48 78 / 0 0 20 0
MTZ320-221000-
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,
BOZEMAN PASS, AND DEEP CREEK PASS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. 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 10 MPH. GUSTS UP TO 25 MPH AFTER MIDNIGHT.
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
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S.
SATURDAY
MOSTLY SUNNY. HIGHS 54 TO 64.
SATURDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN
THE EVENING. LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
57 TO 65.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS AROUND 40. CHANCE
OF RAIN 50 PERCENT.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS 53 TO 63.
MTZ321-221000-
MEAGHER COUNTY VALLEYS-
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,
AND WHITE SULPHUR SPRINGS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. EAST
WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST
WINDS UP TO 5 MPH. GUSTS UP TO 20 MPH AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS UP TO
15 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 LOWER 60S.
SATURDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN
THE EVENING. LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY. 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 UPPER 30S.
CHANCE OF RAIN 50 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
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS 41 TO 47. SOUTH WINDS UP TO 5 MPH.
TUESDAY
PARTLY SUNNY. HIGHS 64 TO 72. SOUTHWEST WINDS UP TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS 42 TO 48. WEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 64 TO 72. SOUTHWEST WINDS UP TO 10 MPH.
GUSTS UP TO 25 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 49. SOUTHWEST WINDS
UP TO 10 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 68 TO 76. LOWS
46 TO 52.
FRIDAY
MOSTLY SUNNY. HIGHS 65 TO 73.
FRIDAY NIGHT
COLDER. PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
RAIN. LOWS 38 TO 46.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS 54 TO 64. LOWS
33 TO 41.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS 34 TO 42. CHANCE
OF RAIN 40 PERCENT.
MONDAY
MOSTLY SUNNY. HIGHS 54 TO 62.
MTZ323-221000-
CANYON FERRY AREA-
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS 43 TO 49. SOUTHEAST WINDS UP TO
10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS 46 TO 52. WEST WINDS UP TO
5 MPH SHIFTING TO THE SOUTH AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. 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
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 40 TO 46.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS 41 TO 47. CHANCE
OF RAIN 40 PERCENT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
MTZ324-221000-
MISSOURI HEADWATERS-
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,
PONY, AND WHITEHALL
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS UP TO 5 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS UP
TO 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE UPPER 40S. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. 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 AND SATURDAY
COOLER. PARTLY CLOUDY. LOWS IN THE
MID 40S. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE UPPER 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 40 PERCENT.
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
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR EARLY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS 42 TO 48. SOUTH WINDS 5 TO
15 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO
15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 49. SOUTH WINDS 5 TO
20 MPH.
THURSDAY THROUGH FRIDAY
BREEZY. MOSTLY CLEAR. HIGHS IN THE
UPPER 70S. LOWS AROUND 50.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS IN THE MID 40S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
LOWER 40S.
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 AROUND 40.
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
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS UP TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTHEAST WINDS UP
TO 5 MPH SHIFTING TO THE NORTH 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
10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS UP TO
10 MPH SHIFTING TO THE WEST IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS
UP TO 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 70S.
LOWS IN THE UPPER 40S.
FRIDAY NIGHT AND SATURDAY
COOLER. PARTLY CLOUDY. 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 50 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE MID 60S.
TEMPERATURE / PRECIPITATION
BOZEMAN AIRPORT 41 75 45 75 / 0 0 20 0
BOZEMAN MSU 44 74 47 74 / 0 0 30 0
MTZ330-221000-
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,
AND RAYNOLDS PASS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS 36 TO 44. SOUTH WINDS UP TO
10 MPH.
TUESDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. HIGHS 57 TO 67. SOUTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
RAIN SHOWERS AFTER MIDNIGHT. LOWS 37 TO 45. SOUTH WINDS UP TO
10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
SUNNY. HIGHS 57 TO 67. SOUTHWEST WINDS UP TO 10 MPH
WITH GUSTS TO AROUND 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 38 TO 46. SOUTH WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 60 TO 72. LOWS
41 TO 49.
FRIDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN IN THE
EVENING. LOWS 39 TO 45.
SATURDAY
MOSTLY SUNNY. HIGHS 53 TO 63.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF RAIN. LOWS 36 TO 42. HIGHS 54 TO 64.
SUNDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS 35 TO 41.
CHANCE OF PRECIPITATION 50 PERCENT.
MONDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN AND SNOW IN THE
MORNING, THEN SLIGHT CHANCE OF RAIN IN THE AFTERNOON. HIGHS 50 TO
60. CHANCE OF PRECIPITATION 20 PERCENT.
TEMPERATURE / PRECIPITATION
WEST YELLOWSTONE 30 66 33 65 / 0 0 50 0
MTZ327-221000-
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,
AND CHIEF JOSEPH PASS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR EARLY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS 36 TO 44. SOUTH WINDS UP TO 5 MPH.
TUESDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. HIGHS 59 TO 69. SOUTHWEST 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 36 TO 42. SOUTHWEST WINDS UP TO 10 MPH.
CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
SUNNY. HIGHS 59 TO 69. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 45. SOUTH WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 64 TO 74. LOWS
40 TO 48.
FRIDAY
MOSTLY SUNNY. HIGHS 59 TO 69.
FRIDAY NIGHT
COLDER. PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
RAIN. LOWS 32 TO 40.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY. HIGHS 51 TO 61. LOWS
30 TO 38.
SUNDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING, THEN SLIGHT CHANCE OF RAIN AND SNOW AFTER MIDNIGHT. LOWS
29 TO 37. 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
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR EARLY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHEAST WINDS UP TO
10 MPH.
TUESDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. HIGHS 68 TO 74. SOUTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 69 TO 75. SOUTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 71 TO 79. LOWS IN
THE UPPER 40S.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
LOWER 40S. HIGHS 64 TO 70.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS 64 TO 70.
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. HIGHS 61 TO 67.
TEMPERATURE / PRECIPITATION
DILLON 41 73 42 74 / 0 10 20 0
MTZ329-221000-
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-
INCLUDING THE CITY OF MONIDA PASS
832 PM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTH
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY IN THE MORNING THEN BECOMING MOSTLY
CLOUDY. HIGHS 59 TO 67. SOUTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 40S.
SOUTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
WEDNESDAY
SUNNY. HIGHS 60 TO 68. 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 THROUGH FRIDAY
BREEZY. MOSTLY CLEAR. HIGHS 62 TO 72.
LOWS IN THE MID 40S.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE
LOWER 40S. HIGHS 56 TO 64.
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 UPPER 30S.
MONDAY
MOSTLY SUNNY. HIGHS 52 TO 60.
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