015
FPUS65 KTFX 172200
SFPMT
STATE FORECAST FOR MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
400 PM MDT SUN MAY 17 2026
MTZ001>007-043-181000-
WEST OF THE CONTINENTAL DIVIDE-
NATIONAL WEATHER SERVICE MISSOULA MT
400 PM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MDT TONIGHT
FOR WEST GLACIER REGION...BITTERROOT/SAPPHIRE
MOUNTAINS...BUTTE/BLACKFOOT REGION...POTOMAC/SEELEY LAKE
REGION...
...FROST ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 9 AM MDT
MONDAY FOR FLATHEAD/MISSION VALLEYS...MISSOULA/BITTERROOT
VALLEYS...
TONIGHT
PARTLY CLOUDY WITH AREAS OF RAIN AND SNOW. WIDESPREAD
FROST. LOWS IN THE MID 20S TO LOWER 30S.
MONDAY
PARTLY CLOUDY. WIDESPREAD FROST. HIGHS IN THE MID 50S
TO LOWER 60S.
MONDAY NIGHT
PARTLY CLOUDY. WIDESPREAD FROST. LOWS IN THE
UPPER 20S TO MID 30S.
TUESDAY
PARTLY CLOUDY. AREAS OF FROST IN THE MORNING. HIGHS IN
THE 60S.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. LOWS IN THE
30S. HIGHS IN THE 60S.
THURSDAY
PARTLY CLOUDY. A CHANCE OF RAIN. LOWS IN THE 30S TO
LOWER 40S. HIGHS IN THE MID 60S TO LOWER 70S.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S TO LOWER 40S. HIGHS
IN THE UPPER 60S TO MID 70S.
MTZ301>314-316>318-181000-
CENTRAL MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
400 PM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT FOR EAST GLACIER PARK REGION...SOUTHERN ROCKY MOUNTAIN
FRONT...LITTLE BELT AND HIGHWOOD MOUNTAINS...
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE EVENING.
SLIGHT CHANCE OF SNOW THROUGH THE NIGHT. LOWS 25 TO 30...20 TO
25 IN THE MOUNTAINS.
MONDAY
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY
CLOUDY. HIGHS 45 TO 55...35 TO 45 IN THE MOUNTAINS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 25 TO 30.
TUESDAY
PARTLY CLOUDY. HIGHS 55 TO 65.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 35 TO 40. HIGHS 55 TO 65.
THURSDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 35 TO 40.
HIGHS 60 TO 70.
FRIDAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS 40 TO 45. HIGHS 60 TO 70.
MTZ315-319>330-181000-
SOUTHWEST MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
400 PM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
TONIGHT FOR UPPER BLACKFOOT AND MACDONALD PASS...BIG BELT,
BRIDGER AND CASTLE MOUNTAINS...ELKHORN AND BOULDER MOUNTAINS...
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW IN THE EVENING.
LOWS 25 TO 30...20 TO 25 IN THE MOUNTAINS. NORTH WINDS 20 TO
25 MPH WITH GUSTS TO 40 MPH IN THE EVENING.
MONDAY
MOSTLY CLOUDY IN THE MORNING THEN BECOMING PARTLY
CLOUDY. HIGHS 45 TO 55...35 TO 45 IN THE MOUNTAINS. GUSTS UP TO
35 MPH IN THE MORNING.
MONDAY NIGHT...MOSTLY CLEAR. LOWS 25 TO 30
20 TO 25 IN THE
MOUNTAINS.
TUESDAY
PARTLY CLOUDY. HIGHS 50 TO 60.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 30 TO 35. HIGHS
50 TO 60.
THURSDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 30 TO 35.
HIGHS 55 TO 65.
FRIDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 35 TO 40. HIGHS 55 TO 65.
MTZ016>027-059>062-181000-
NORTHEAST MONTANA-
NATIONAL WEATHER SERVICE GLASGOW MT
400 PM MDT SUN MAY 17 2026
TONIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS IN
THE LOWER TO MID 30S.
MONDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS.
HIGHS IN THE MID TO UPPER 40S.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 20S TO LOWER 30S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON AND EVENING. HIGHS IN THE LOWER TO
MID 60S.
WEDNESDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE MID 60S TO LOWER 70S. LOWS IN THE MID
30S TO LOWER 40S.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS.
HIGHS IN THE MID TO UPPER 60S. LOWS NEAR 40.
FRIDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS NEAR 70. LOWS IN THE LOWER TO MID 40S.
MTZ028>042-056>058-063>068-181000-
SOUTH CENTRAL AND SOUTHEAST MONTANA-
NATIONAL WEATHER SERVICE BILLINGS MT
400 PM MDT SUN MAY 17 2026
...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT MONDAY FOR
PORTIONS OF SOUTH CENTRAL MONTANA...
TONIGHT
MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SLIGHT
CHANCE OF SHOWERS WEST...AND SLIGHT CHANCE OF SHOWERS EAST. LOWS
IN THE UPPER 20S TO THE UPPER 30S.
MONDAY
CLOUDY. PATCHY BLOWING SNOW. CHANCE OF SNOW SHOWERS AND
SLIGHT CHANCE OF RAIN SHOWERS. HIGHS IN THE LOWER 40S TO THE
LOWER 50S.
MONDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.
LOWS IN THE MID 20S TO LOWER 30S.
TUESDAY
SUNNY. HIGHS IN THE UPPER 50S TO THE UPPER 60S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S TO LOWER 40S.
WEDNESDAY
MOSTLY SUNNY. CHANCE OF RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS IN THE LOWER 60S TO THE LOWER 70S.
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 30S TO THE MID
40S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS. HIGHS IN
THE LOWER 60S TO THE LOWER 70S.
THURSDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.
LOWS IN THE UPPER 30S TO THE UPPER 40S.
FRIDAY
PARTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS. HIGHS IN
THE MID 60S TO THE MID 70S.
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