558
FPUS65 KTFX 191030
SFPMT
STATE FORECAST FOR MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
430 AM MDT TUE MAY 19 2026
MTZ001>007-043-192200-
WEST OF THE CONTINENTAL DIVIDE-
NATIONAL WEATHER SERVICE MISSOULA MT
430 AM MDT TUE MAY 19 2026
...FROST ADVISORY IN EFFECT UNTIL 9 AM MDT THIS MORNING FOR
FLATHEAD/MISSION VALLEYS...LOWER CLARK FORK
REGION...MISSOULA/BITTERROOT VALLEYS...BITTERROOT/SAPPHIRE
MOUNTAINS...
TODAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. AREAS OF FROST. HIGHS IN THE 60S.
TONIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS IN
THE 30S.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING, THEN
RAIN SHOWERS LIKELY IN THE AFTERNOON AND EVENING. HIGHS IN THE
60S.
THURSDAY
PARTLY CLOUDY. A CHANCE OF RAIN. LOWS IN THE 30S.
HIGHS IN THE 60S TO LOWER 70S.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 30S TO LOWER 40S. HIGHS
IN THE UPPER 60S TO MID 70S.
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S TO MID 40S.
HIGHS IN THE 70S.
MTZ301>314-316>318-192200-
CENTRAL MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
430 AM MDT TUE MAY 19 2026
TODAY
INCREASING CLOUDS. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 60 TO 65...45 TO
55 IN THE MOUNTAINS.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 35 TO 40.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN IN THE MORNING. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO 60...45 TO
55 IN THE MOUNTAINS.
THURSDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 35 TO 40. HIGHS
55 TO 65.
FRIDAY
PARTLY CLOUDY. LOWS 35 TO 40. HIGHS 60 TO 70.
SATURDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 70 TO 80.
MTZ315-319>330-192200-
SOUTHWEST MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
430 AM MDT TUE MAY 19 2026
TODAY
INCREASING CLOUDS. SLIGHT CHANCE OF RAIN AND SNOW IN THE
AFTERNOON. HIGHS 55 TO 60...45 TO 55 IN THE MOUNTAINS.
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW. LOWS
30 TO 40...25 TO 35 IN THE MOUNTAINS.
WEDNESDAY
MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON AND EVENING. HIGHS 55 TO 65...
45 TO 55 IN THE MOUNTAINS.
THURSDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. LOWS 30 TO
35. HIGHS 50 TO 60.
FRIDAY
PARTLY CLOUDY. LOWS 30 TO 35. HIGHS 55 TO 65.
SATURDAY
PARTLY CLOUDY. LOWS 35 TO 40. HIGHS 65 TO 75.
MTZ016>027-059>062-192200-
NORTHEAST MONTANA-
NATIONAL WEATHER SERVICE GLASGOW MT
430 AM MDT TUE MAY 19 2026
TODAY
SUNNY. HIGHS IN THE LOWER TO MID 60S.
TONIGHT
MOSTLY CLOUDY. LOWS NEAR 40.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON AND EVENING. HIGHS IN
THE MID 60S TO LOWER 70S.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. HIGHS IN
THE LOWER TO MID 60S. LOWS NEAR 40.
FRIDAY
PARTLY CLOUDY. HIGHS NEAR 70. LOWS NEAR 40.
SATURDAY
PARTLY CLOUDY. HIGHS IN THE MID TO UPPER 70S. LOWS IN
THE LOWER TO MID 40S.
MTZ028>042-056>058-063>068-192200-
SOUTH CENTRAL AND SOUTHEAST MONTANA-
NATIONAL WEATHER SERVICE BILLINGS MT
430 AM MDT TUE MAY 19 2026
TODAY
SUNNY. HIGHS IN THE UPPER 50S TO THE UPPER 60S.
TONIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S TO THE LOWER 40S.
WEDNESDAY
PARTLY SUNNY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS IN THE LOWER 60S TO THE LOWER 70S.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS WEST...AND CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS EAST. LOWS IN THE MID 30S TO THE MID 40S.
THURSDAY
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS. HIGHS IN THE
MID 50S TO THE MID 60S.
THURSDAY NIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS.
LOWS IN THE LOWER 30S TO THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS. HIGHS IN
THE MID 60S TO LOWER 70S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S TO THE UPPER
40S.
SATURDAY
SUNNY. HIGHS IN THE LOWER 70S TO THE LOWER 80S.
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