614
FPUS55 KTFX 170632
ZFPTFX
ZONE FORECAST PRODUCT FOR CENTRAL AND SOUTHWEST MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
1232 AM MDT THU SEP 17 2026
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR .TONIGHT THROUGH TODAY..., FRIDAY, FRIDAY NIGHT, AND
SATURDAY.
MTZ301-181000-
EAST GLACIER PARK REGION-
INCLUDING THE CITIES OF EAST GLACIER PARK, KIOWA, BABB,
SAINT MARY, MARIAS PASS, AND LOGAN PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF RAIN SHOWERS. HIGHS 61 TO 69. LOWS 38 TO 48. SOUTHWEST WINDS
UP TO 10 MPH.
FRIDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS 57 TO 65. WEST WINDS UP TO 5 MPH SHIFTING TO
THE NORTHEAST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE MID 40S. NORTHEAST WINDS UP
TO 10 MPH SHIFTING TO THE NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS 57 TO 67. WEST WINDS UP TO 5 MPH
SHIFTING TO THE SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHWEST
WINDS UP TO 10 MPH.
SUNDAY THROUGH TUESDAY
MOSTLY CLEAR. HIGHS 58 TO 70. LOWS IN
THE MID 40S.
TUESDAY NIGHT THROUGH THURSDAY
PARTLY CLOUDY. LOWS IN THE MID
40S. HIGHS 56 TO 67.
MTZ307-181000-
SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE CITY OF ROGERS PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 63 TO 73. LOWS
38 TO 48. WEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
FRIDAY
PARTLY SUNNY IN THE MORNING, THEN CLOUDY WITH CHANCE OF
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS 59 TO 67. WEST WINDS UP TO 5 MPH SHIFTING TO THE NORTHEAST
IN THE AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT.
LOWS IN THE MID 40S. NORTH WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 80 PERCENT.
SATURDAY
PARTLY SUNNY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS
55 TO 63. NORTH WINDS UP TO 5 MPH SHIFTING TO THE NORTHEAST IN
THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTH
WINDS UP TO 5 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
SUNDAY THROUGH TUESDAY
MOSTLY CLEAR. HIGHS 59 TO 72. LOWS IN
THE MID 40S.
TUESDAY NIGHT THROUGH THURSDAY
PARTLY CLOUDY. LOWS IN THE MID
40S. HIGHS 59 TO 70.
MTZ302-181000-
NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BROWNING, HEART BUTTE, AND DUPUYER
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. MOSTLY CLEAR WITH A 20 PERCENT CHANCE
OF RAIN SHOWERS. HIGHS IN THE UPPER 60S. LOWS 40 TO 49. WEST
WINDS UP TO 10 MPH.
FRIDAY
PARTLY SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS
UP TO 5 MPH SHIFTING TO THE NORTH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN
SHOWERS IN THE EVENING. LOWS IN THE MID 40S. NORTHEAST WINDS UP
TO 10 MPH SHIFTING TO THE NORTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. WEST WINDS UP
TO 5 MPH SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS 5 TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SUNDAY THROUGH MONDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER
70S. LOWS IN THE UPPER 40S.
TUESDAY THROUGH THURSDAY
PARTLY CLOUDY. HIGHS IN THE LOWER
70S. LOWS IN THE MID 40S.
MTZ308-181000-
SOUTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BYNUM, CHOTEAU, AND PENDROY
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE LOWER
70S. LOWS 43 TO 51. WEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 50 PERCENT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
20 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND
70. NORTHWEST WINDS UP TO 5 MPH SHIFTING TO THE NORTH IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS AROUND 50. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 50 PERCENT.
SATURDAY
PARTLY SUNNY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS
IN THE UPPER 60S. NORTHWEST WINDS UP TO 5 MPH SHIFTING TO THE
EAST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SUNDAY THROUGH TUESDAY
MOSTLY CLEAR. HIGHS IN THE MID 70S.
LOWS IN THE UPPER 40S.
TUESDAY NIGHT THROUGH THURSDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE MID 70S.
MTZ303-181000-
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-
INCLUDING THE CITIES OF CUT BANK, ETHRIDGE, AND SANTA RITA
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLEAR WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS. HIGHS IN THE UPPER 60S. LOWS 41 TO 49. NORTHWEST WINDS
UP TO 10 MPH.
FRIDAY
PARTLY SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTH WINDS
UP TO 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS
UP TO 5 MPH SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS
UP TO 10 MPH.
SUNDAY THROUGH TUESDAY
MOSTLY CLEAR. HIGHS IN THE MID 70S.
LOWS IN THE UPPER 40S.
TUESDAY NIGHT THROUGH THURSDAY
PARTLY CLOUDY. LOWS IN THE MID
40S. HIGHS IN THE LOWER 70S.
TEMPERATURE / PRECIPITATION
CUT BANK 44 69 46 68 / 20 10 10 0
MTZ304-181000-
EASTERN TOOLE AND LIBERTY-
INCLUDING THE CITIES OF DEVON, SHELBY, CHESTER, GALATA, JOPLIN,
LOTHAIR, AND WHITLASH
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
PARTLY CLOUDY. HIGHS IN THE LOWER 70S. LOWS
43 TO 50. NORTH WINDS UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
FRIDAY
PARTLY SUNNY. HIGHS 68 TO 74. NORTH WINDS UP TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTH WINDS
UP TO 10 MPH.
SATURDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
AFTERNOON. HIGHS IN THE UPPER 60S. EAST WINDS UP TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTHEAST
WINDS UP TO 10 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S.
MONDAY THROUGH TUESDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE MID
70S. LOWS IN THE UPPER 40S.
WEDNESDAY THROUGH THURSDAY
PARTLY CLOUDY. HIGHS 71 TO 77. LOWS
IN THE MID 40S.
MTZ305-181000-
HILL COUNTY-
INCLUDING THE CITY OF HAVRE
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS 43 TO 49. NORTH WINDS UP TO 10 MPH WITH GUSTS TO AROUND
25 MPH.
FRIDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS UP TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
AROUND 70. NORTHEAST WINDS UP TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. EAST WINDS
UP TO 10 MPH.
SUNDAY THROUGH TUESDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE MID
70S. LOWS IN THE UPPER 40S.
WEDNESDAY THROUGH THURSDAY
PARTLY CLOUDY. HIGHS IN THE UPPER
70S. LOWS IN THE MID 40S.
TEMPERATURE / PRECIPITATION
HAVRE 46 77 49 72 / 10 0 10 20
MTZ306-181000-
NORTHERN BLAINE COUNTY-
INCLUDING THE CITIES OF CHINOOK, ZURICH, HARLEM, HOGELAND,
AND FORT BELKNAP
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
PARTLY CLOUDY. HIGHS IN THE LOWER 70S. LOWS
43 TO 50. EAST WINDS UP TO 20 MPH.
FRIDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS UP TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 15 MPH.
SATURDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE MORNING,
THEN CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
NORTHEAST WINDS 5 TO 15 MPH. CHANCE OF RAIN 40 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. A 50 PERCENT CHANCE OF RAIN IN
THE EVENING. LOWS IN THE MID 40S. EAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT THROUGH TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE
UPPER 40S. HIGHS IN THE UPPER 70S.
WEDNESDAY THROUGH THURSDAY
PARTLY CLOUDY. HIGHS IN THE UPPER
70S. LOWS IN THE MID 40S.
MTZ309-181000-
EASTERN PONDERA AND EASTERN TETON-
INCLUDING THE CITIES OF BRADY, CONRAD, AND LEDGER
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF RAIN SHOWERS. PATCHY FOG EARLY IN THE MORNING. HIGHS IN THE
LOWER 70S. LOWS 40 TO 48. NORTHWEST WINDS UP TO 10 MPH.
FRIDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHWEST WINDS
UP TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER
40S. NORTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
SATURDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
SLIGHT CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
NORTH WINDS UP TO 5 MPH SHIFTING TO THE EAST AROUND 5 MPH IN THE
AFTERNOON. CHANCE OF RAIN 40 PERCENT.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTH WINDS
UP TO 5 MPH.
SUNDAY THROUGH TUESDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 70S.
LOWS IN THE UPPER 40S.
TUESDAY NIGHT THROUGH THURSDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 40S. HIGHS IN THE UPPER 70S.
MTZ310-181000-
WESTERN AND CENTRAL CHOUTEAU COUNTY-
INCLUDING THE CITIES OF FLOWEREE, CARTER, AND FORT BENTON
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF RAIN SHOWERS. HIGHS IN THE MID 70S. LOWS 43 TO 53. WEST WINDS
UP TO 10 MPH WITH GUSTS TO AROUND 25 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS UP
TO 10 MPH.
FRIDAY NIGHT
CLOUDY. CHANCE OF RAIN SHOWERS IN THE EVENING,
THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE LOWER 50S. NORTH
WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
SATURDAY
PARTLY SUNNY. CHANCE OF RAIN IN THE MORNING, THEN
SLIGHT CHANCE OF RAIN IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
NORTH WINDS UP TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO
5 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE MID 70S.
LOWS IN THE UPPER 40S.
MONDAY THROUGH WEDNESDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 70S.
LOWS AROUND 50.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S.
MTZ311-181000-
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE CITY OF ROCKY BOY
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
PARTLY CLOUDY. HIGHS 70 TO 76. LOWS 44 TO 54.
SOUTHEAST WINDS UP TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 71 TO 77. NORTHWEST WINDS UP TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN
THE EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE
LOWER 50S. NORTHEAST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
SATURDAY
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS
64 TO 70. NORTHEAST WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN IN THE EVENING,
THEN SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS IN THE UPPER 40S.
EAST WINDS UP TO 10 MPH. CHANCE OF RAIN 50 PERCENT.
SUNDAY
PARTLY SUNNY IN THE MORNING THEN CLEARING. HIGHS 68 TO
74.
SUNDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS AROUND 50.
HIGHS 73 TO 80.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
THURSDAY
SUNNY. HIGHS 73 TO 79.
MTZ312-181000-
CASCADE COUNTY BELOW 5000FT-
INCLUDING THE CITY OF GREAT FALLS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH A 20 PERCENT CHANCE
OF THUNDERSTORMS. HIGHS IN THE MID 70S. LOWS 42 TO 51. SOUTHWEST
WINDS UP TO 10 MPH.
FRIDAY
PARTLY SUNNY. A 20 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE LOWER 70S. WEST WINDS UP TO 5 MPH
SHIFTING TO THE NORTH IN THE AFTERNOON.
FRIDAY NIGHT
CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.
LOWS IN THE LOWER 50S. NORTHEAST WINDS UP TO 10 MPH SHIFTING TO
THE NORTHWEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION 70 PERCENT.
SATURDAY
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF RAIN. HIGHS
IN THE UPPER 60S. NORTHWEST WINDS UP TO 5 MPH SHIFTING TO THE
NORTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHEAST WINDS UP TO 5 MPH
SHIFTING TO THE SOUTH AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE MID 70S.
SUNDAY NIGHT AND MONDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN
THE UPPER 70S.
MONDAY NIGHT THROUGH TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND
50. HIGHS IN THE UPPER 70S.
WEDNESDAY THROUGH THURSDAY
PARTLY CLOUDY. HIGHS IN THE UPPER
70S. LOWS IN THE UPPER 40S.
TEMPERATURE / PRECIPITATION
GREAT FALLS ARPT 46 74 51 68 / 20 20 60 40
MTZ313-181000-
JUDITH BASIN COUNTY AND JUDITH GAP-
INCLUDING THE CITIES OF RAYNESFORD, GEYSER, STANFORD, WINDHAM,
BENCHLAND, HOBSON, AND MOCCASIN
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS IN THE MID 70S.
LOWS 43 TO 51. SOUTHWEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
FRIDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. WEST
WINDS UP TO 5 MPH SHIFTING TO THE NORTH WITH GUSTS TO AROUND
25 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN RAIN AFTER MIDNIGHT. LOWS IN
THE UPPER 40S. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID
60S. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE MID 40S. NORTH WINDS UP TO 10 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS IN THE MID 40S.
MONDAY THROUGH THURSDAY
MOSTLY CLEAR. HIGHS IN THE UPPER 70S.
LOWS IN THE UPPER 40S.
MTZ314-181000-
FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF HILGER AND LEWISTOWN
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
LOWS 44 TO 55. SOUTHWEST WINDS UP TO 15 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
5 TO 10 MPH.
FRIDAY NIGHT
CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT.
LOWS IN THE LOWER 50S. NORTH WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 70 PERCENT.
SATURDAY
RAIN LIKELY IN THE MORNING, THEN RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 63 TO 69.
NORTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE UPPER 40S. NORTH WINDS UP TO 10 MPH. CHANCE
OF PRECIPITATION 70 PERCENT.
SUNDAY
MOSTLY SUNNY. A 20 PERCENT CHANCE OF RAIN IN THE
MORNING. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER
40S. HIGHS IN THE UPPER 70S.
TEMPERATURE / PRECIPITATION
LEWISTOWN 46 75 48 64 / 0 30 90 80
MTZ315-181000-
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE CITIES OF MARYSVILLE, LINCOLN, FLESHER PASS,
AND MACDONALD PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH A 50 PERCENT CHANCE
OF THUNDERSTORMS. HIGHS 67 TO 75. LOWS 40 TO 49. SOUTHWEST WINDS
UP TO 10 MPH.
FRIDAY
PARTLY SUNNY IN THE MORNING, THEN CLOUDY WITH A
50 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 62 TO
70. WEST WINDS UP TO 5 MPH SHIFTING TO THE NORTH IN THE
AFTERNOON.
FRIDAY NIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN AFTER MIDNIGHT. LOWS 44 TO 50.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
SATURDAY
MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING, THEN RAIN
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 57 TO 65. NORTH WINDS UP TO 5 MPH. CHANCE OF
PRECIPITATION 70 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.
LOWS IN THE MID 40S. NORTHWEST WINDS UP TO 5 MPH SHIFTING TO THE
WEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS 63 TO 71.
SUNDAY NIGHT
CLEAR. LOWS IN THE MID 40S.
MONDAY THROUGH WEDNESDAY
MOSTLY CLEAR. HIGHS 65 TO 74. LOWS IN
THE MID 40S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
THURSDAY
SUNNY. HIGHS 65 TO 73.
MTZ316-181000-
GATES OF THE MOUNTAINS-
INCLUDING THE CITIES OF CANYON CREEK, WOLF CREEK, AND CRAIG
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 72 TO 78. LOWS
42 TO 51. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 67 TO 73. WEST WINDS UP TO 5 MPH SHIFTING TO THE
NORTH IN THE AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN LIKELY AFTER MIDNIGHT. LOWS IN THE
LOWER 50S. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
90 PERCENT.
SATURDAY
MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING, THEN
CHANCE OF RAIN IN THE AFTERNOON. HIGHS 62 TO 68. NORTHWEST WINDS
UP TO 5 MPH. CHANCE OF RAIN 70 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.
LOWS IN THE UPPER 40S. NORTHWEST WINDS UP TO 5 MPH SHIFTING TO
THE SOUTHWEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS 69 TO 75.
SUNDAY NIGHT AND MONDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS
72 TO 78.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER
40S. HIGHS 71 TO 77.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
THURSDAY
SUNNY. HIGHS 71 TO 77.
MTZ317-181000-
LITTLE BELT AND HIGHWOOD MOUNTAINS-
INCLUDING THE CITIES OF MONARCH, NEIHART, AND KINGS HILL PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS 68 TO 74. LOWS 39 TO 52. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 64 TO 70. WEST WINDS UP TO 5 MPH SHIFTING TO THE
NORTH WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN RAIN AFTER MIDNIGHT. LOWS
44 TO 50. NORTH WINDS UP TO 10 MPH. GUSTS UP TO 25 MPH IN THE
EVENING. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 54 TO 62.
NORTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. A 20 PERCENT CHANCE OF RAIN. LOWS 41 TO 47.
NORTHWEST WINDS UP TO 10 MPH SHIFTING TO THE SOUTHWEST AFTER
MIDNIGHT.
SUNDAY THROUGH THURSDAY
MOSTLY CLEAR. HIGHS 61 TO 74. LOWS
42 TO 50.
MTZ318-181000-
SNOWY AND JUDITH MOUNTAINS-
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY. HIGHS 67 TO 75. LOWS
41 TO 53. SOUTHWEST WINDS UP TO 15 MPH.
FRIDAY
PARTLY SUNNY. A 50 PERCENT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS 66 TO 74. NORTHWEST WINDS UP TO 10 MPH.
FRIDAY NIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 40S. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
SATURDAY
COOLER. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 54 TO 60. NORTH WINDS 5 TO 10 MPH WITH GUSTS
TO AROUND 25 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT. LOWS IN THE MID 40S. NORTHWEST WINDS UP TO 10 MPH.
CHANCE OF PRECIPITATION 70 PERCENT.
SUNDAY
WARMER. MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF RAIN.
HIGHS 62 TO 68.
SUNDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER
40S. HIGHS 67 TO 76.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
THURSDAY
SUNNY. HIGHS 68 TO 76.
MTZ319-181000-
HELENA VALLEY-
INCLUDING THE CITY OF HELENA
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
WARMER. PARTLY CLOUDY WITH CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER
70S. LOWS 42 TO 50. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION 40 PERCENT.
FRIDAY
PARTLY SUNNY IN THE MORNING, THEN CLOUDY WITH A
50 PERCENT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
MID 70S. LIGHT WINDS BECOMING NORTHWEST UP TO 5 MPH WITH GUSTS TO
AROUND 20 MPH IN THE AFTERNOON.
FRIDAY NIGHT
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN AFTER MIDNIGHT. LOWS AROUND 50. NORTHWEST
WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY
MOSTLY CLOUDY. RAIN IN THE MORNING, THEN CHANCE OF
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE UPPER 60S. NORTHWEST WINDS UP TO 5 MPH. CHANCE OF
PRECIPITATION 80 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 40S. WEST WINDS UP TO 5 MPH
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE MID 70S.
SUNDAY NIGHT AND MONDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN
THE UPPER 70S.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS IN THE UPPER
40S. HIGHS IN THE UPPER 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S.
TEMPERATURE / PRECIPITATION
HELENA 47 75 52 69 / 40 60 90 80
MTZ320-181000-
BIG BELT, BRIDGER AND CASTLE MOUNTAINS-
INCLUDING THE CITIES OF TRIDENT, MAUDLOW, BATTLE RIDGE PASS,
BOZEMAN PASS, AND DEEP CREEK PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS 67 TO 75. LOWS 40 TO 51. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 63 TO 71. SOUTHWEST WINDS
UP TO 5 MPH SHIFTING TO THE NORTH IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 40S. NORTH WINDS UP TO 10 MPH. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 54 TO 62. NORTH
WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. A 50 PERCENT CHANCE OF RAIN IN
THE EVENING. LOWS IN THE MID 40S. NORTHWEST WINDS UP TO 5 MPH
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS 61 TO 69. LOWS IN
THE MID 40S.
MONDAY
SUNNY. HIGHS 65 TO 73.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS IN THE MID
40S. HIGHS 65 TO 73.
MTZ321-181000-
MEAGHER COUNTY VALLEYS-
INCLUDING THE CITIES OF MARTINSDALE, CHECKERBOARD, RINGLING,
AND WHITE SULPHUR SPRINGS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS IN THE MID 70S. LOWS 40 TO 49. SOUTH WINDS
UP TO 10 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS UP TO 5 MPH SHIFTING TO THE NORTH IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN AFTER MIDNIGHT. LOWS IN THE UPPER 40S. NORTH
WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
SATURDAY
COOLER. RAIN IN THE MORNING, THEN RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
LOWER 60S. NORTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS IN THE LOWER 40S. NORTHWEST WINDS UP TO 10 MPH SHIFTING TO
THE SOUTHWEST AFTER MIDNIGHT.
SUNDAY THROUGH THURSDAY
MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS IN THE MID 40S.
MTZ322-181000-
ELKHORN AND BOULDER MOUNTAINS-
INCLUDING THE CITIES OF MONTANA CITY, CLANCY, BOULDER, CORBIN,
WICKES, ELK PARK PASS, AND HOMESTAKE PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 66 TO 74. LOWS 40 TO 50.
WEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
61 TO 69. WEST WINDS UP TO 5 MPH SHIFTING TO THE NORTH IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN AFTER MIDNIGHT. LOWS 42 TO 50. NORTHWEST WINDS
UP TO 10 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 54 TO 62.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS 39 TO 45.
NORTHWEST WINDS UP TO 5 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
SUNDAY
WARMER, SUNNY. HIGHS 62 TO 70.
SUNDAY NIGHT AND MONDAY
CLEAR. LOWS 41 TO 47. HIGHS 65 TO 73.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 42 TO 48.
HIGHS 65 TO 73.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 47.
THURSDAY
SUNNY. HIGHS 65 TO 73.
MTZ323-181000-
CANYON FERRY AREA-
INCLUDING THE CITIES OF TOSTON, TOWNSEND, AND WINSTON
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS IN THE MID 70S. LOWS 44 TO 53. SOUTH WINDS
UP TO 10 MPH.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. SOUTH
WINDS UP TO 5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON.
CHANCE OF PRECIPITATION 70 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. LOWS IN THE LOWER 50S. NORTHWEST WINDS UP TO
10 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID
60S. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
UPPER 40S. NORTHWEST WINDS UP TO 5 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT AND MONDAY
CLEAR. LOWS 45 TO 51. HIGHS IN THE MID
70S.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 45 TO 51.
HIGHS IN THE MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 50.
THURSDAY
SUNNY. HIGHS IN THE MID 70S.
MTZ324-181000-
MISSOURI HEADWATERS-
INCLUDING THE CITIES OF HARRISON, THREE FORKS, WILLOW CREEK,
PONY, AND WHITEHALL
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE MID 70S. LOWS 44 TO
51. SOUTHWEST WINDS UP TO 5 MPH WITH GUSTS TO AROUND 20 MPH.
CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS IN THE MORNING,
THEN RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE LOWER 70S. WEST WINDS UP TO 5 MPH
SHIFTING TO THE NORTH IN THE AFTERNOON. CHANCE OF PRECIPITATION
80 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. LOWS IN THE UPPER 40S. NORTHWEST WINDS UP TO
5 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
NORTH WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
MID 40S. NORTH WINDS UP TO 5 MPH SHIFTING TO THE WEST AFTER
MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT AND MONDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN
THE MID 70S.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID
40S. HIGHS IN THE MID 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
THURSDAY
SUNNY. HIGHS IN THE MID 70S.
MTZ325-181000-
MADISON RIVER VALLEY-
INCLUDING THE CITIES OF CAMERON, ENNIS, JEFFERS, MCALLISTER,
AND NORRIS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER 70S. LOWS
44 TO 52. SOUTH WINDS UP TO 20 MPH. CHANCE OF PRECIPITATION
50 PERCENT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE MORNING,
THEN RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE LOWER 70S. SOUTH WINDS UP TO 5 MPH SHIFTING TO THE
WEST IN THE AFTERNOON. CHANCE OF PRECIPITATION 90 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. LOWS IN THE MID 40S. NORTHWEST WINDS UP TO
10 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
NORTHWEST WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER
40S. NORTH WINDS UP TO 5 MPH SHIFTING TO THE SOUTHWEST AFTER
MIDNIGHT. CHANCE OF PRECIPITATION 40 PERCENT.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS IN THE MID 40S.
MONDAY
SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID
40S. HIGHS IN THE UPPER 70S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S.
MTZ326-181000-
GALLATIN VALLEY-
INCLUDING THE CITIES OF BOZEMAN AND GALLATIN GATEWAY
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN THE UPPER 70S. LOWS
43 TO 51. SOUTHEAST WINDS UP TO 10 MPH WITH GUSTS TO AROUND
25 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
FRIDAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE MORNING,
THEN RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE LOWER 70S. SOUTHEAST WINDS UP TO 5 MPH SHIFTING TO
THE NORTHWEST IN THE AFTERNOON. CHANCE OF PRECIPITATION
90 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. LOWS IN THE UPPER 40S. NORTHWEST WINDS UP TO
5 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
NORTHWEST WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION NEAR
100 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 MID 40S. WEST WINDS UP TO 5 MPH
SHIFTING TO THE SOUTH AFTER MIDNIGHT. CHANCE OF PRECIPITATION
50 PERCENT.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS IN THE LOWER 70S.
LOWS IN THE MID 40S.
MONDAY
SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS IN THE MID
40S. HIGHS IN THE UPPER 70S.
TEMPERATURE / PRECIPITATION
BOZEMAN AIRPORT 45 74 46 65 / 30 80 100 90
BOZEMAN MSU 47 74 48 64 / 40 80 100 90
MTZ330-181000-
GALLATIN AND MADISON COUNTY MOUNTAINS AND CENTENNIAL MOUNTAINS-
INCLUDING THE CITIES OF BIG SKY, WEST YELLOWSTONE, TARGHEE PASS,
AND RAYNOLDS PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 61 TO 71. LOWS 42 TO 48.
SOUTH WINDS UP TO 15 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF
PRECIPITATION 50 PERCENT.
FRIDAY
PARTLY SUNNY WITH CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CLOUDY WITH RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 56 TO 66. SOUTH WINDS UP TO
10 MPH. GUSTS UP TO 25 MPH IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. LOWS 39 TO 45. WEST WINDS UP TO 10 MPH SHIFTING
TO THE NORTHWEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
SATURDAY
RAIN LIKELY IN THE MORNING, THEN RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 49 TO 59.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS 37 TO 43.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
SUNDAY
WARMER. MOSTLY SUNNY. HIGHS 57 TO 67.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 43.
MONDAY
SUNNY. HIGHS 61 TO 71.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS 39 TO 45.
HIGHS 61 TO 71.
TEMPERATURE / PRECIPITATION
WEST YELLOWSTONE 38 67 36 61 / 70 90 80 70
MTZ327-181000-
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE CITIES OF DEWEY, WISDOM, WISE RIVER, BIG HOLE PASS,
AND CHIEF JOSEPH PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 50 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS 63 TO 73. LOWS 39 TO 45. SOUTHWEST WINDS UP
TO 15 MPH.
FRIDAY
PARTLY SUNNY WITH CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CLOUDY WITH RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO 63. NORTHWEST WINDS
UP TO 10 MPH. CHANCE OF PRECIPITATION 70 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN AFTER MIDNIGHT. LOWS 37 TO 43.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 52 TO 62.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS 34 TO 40.
NORTHWEST WINDS UP TO 10 MPH SHIFTING TO THE WEST AFTER MIDNIGHT.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS 59 TO 69. LOWS
35 TO 43.
MONDAY
SUNNY. HIGHS 61 TO 71.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 36 TO 44.
HIGHS 61 TO 71.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 43.
THURSDAY
SUNNY. HIGHS 62 TO 72.
MTZ328-181000-
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-
INCLUDING THE CITIES OF BANNACK, DILLON, GLEN, AND WATERLOO
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLOUDY. A 50 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS 72 TO 78. LOWS 43 TO 50. SOUTH WINDS UP TO
15 MPH WITH GUSTS TO AROUND 35 MPH.
FRIDAY
PARTLY SUNNY WITH CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CLOUDY WITH RAIN SHOWERS AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 65 TO 71. SOUTHWEST WINDS
UP TO 5 MPH SHIFTING TO THE WEST IN THE AFTERNOON. CHANCE OF
PRECIPITATION 90 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN AFTER MIDNIGHT. LOWS IN THE MID 40S.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY
RAIN IN THE MORNING, THEN RAIN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 61 TO 67.
NORTHWEST WINDS UP TO 5 MPH. CHANCE OF PRECIPITATION 90 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 40S. NORTH WINDS UP TO 10 MPH
SHIFTING TO THE SOUTHWEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION
40 PERCENT.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS 68 TO 74. LOWS IN
THE LOWER 40S.
MONDAY
SUNNY. HIGHS 71 TO 77.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS IN THE MID
40S. HIGHS 71 TO 78.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
THURSDAY
SUNNY. HIGHS 72 TO 78.
TEMPERATURE / PRECIPITATION
DILLON 45 70 44 66 / 50 90 90 80
MTZ329-181000-
RUBY MOUNTAINS AND SOUTHERN BEAVERHEAD MOUNTAINS-
INCLUDING THE CITY OF MONIDA PASS
1232 AM MDT THU SEP 17 2026
REST OF TONIGHT
MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF
THUNDERSTORMS. HIGHS 63 TO 71. LOWS 42 TO 47. SOUTH WINDS UP TO
20 MPH WITH GUSTS TO AROUND 35 MPH.
FRIDAY
PARTLY SUNNY WITH CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN RAIN SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 57 TO 65. SOUTH WINDS UP TO 10 MPH SHIFTING TO
THE SOUTHWEST WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
CHANCE OF PRECIPITATION 90 PERCENT.
FRIDAY NIGHT
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING, THEN RAIN AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
SATURDAY
RAIN LIKELY IN THE MORNING, THEN RAIN SHOWERS LIKELY
AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 53 TO
61. NORTHWEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION
70 PERCENT.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS AROUND 40. NORTHWEST WINDS UP TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS 60 TO 68. LOWS IN
THE LOWER 40S.
MONDAY
SUNNY. HIGHS 63 TO 71.
MONDAY NIGHT THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS IN THE LOWER
40S. HIGHS 63 TO 72.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
THURSDAY
SUNNY. HIGHS 64 TO 72.
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