591
FPUS65 KTFX 192200
SFPMT
STATE FORECAST FOR MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
400 PM MDT TUE MAY 19 2026
MTZ001>007-043-201000-
WEST OF THE CONTINENTAL DIVIDE-
NATIONAL WEATHER SERVICE MISSOULA MT
400 PM MDT TUE MAY 19 2026
TONIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS IN
THE 30S.
WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE 60S.
WEDNESDAY NIGHT
RAIN SHOWERS LIKELY. LOWS IN THE 30S.
THURSDAY
PARTLY CLOUDY. HIGHS IN THE 60S.
FRIDAY
PARTLY CLOUDY. LOWS IN THE 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 TO LOWER 80S.
SUNDAY
PARTLY CLOUDY. LOWS IN THE 40S. HIGHS IN THE MID 70S TO
LOWER 80S.
MTZ301>314-316>318-201000-
CENTRAL MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
400 PM MDT TUE MAY 19 2026
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS IN THE
EVENING. LOWS 35 TO 40.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE MORNING.
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 50 TO 60...45 TO
55 IN THE MOUNTAINS.
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF RAIN THROUGH THE
NIGHT. LOWS 35 TO 40...30 TO 35 IN THE MOUNTAINS.
THURSDAY
PARTLY CLOUDY. 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.
SUNDAY
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 75 TO 85.
MTZ315-319>330-201000-
SOUTHWEST MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
400 PM MDT TUE MAY 19 2026
TONIGHT
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW SHOWERS
IN THE EVENING. LOWS 30 TO 35.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS 55 TO 60...45 TO 55 IN THE MOUNTAINS.
WEDNESDAY NIGHT
CLOUDY. CHANCE OF SNOW SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. RAIN THROUGH THE NIGHT.
SNOW AFTER MIDNIGHT. LOWS 30 TO 40.
THURSDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW. HIGHS 45 TO
55.
FRIDAY
PARTLY CLOUDY. LOWS 30 TO 35. HIGHS 55 TO 65.
SATURDAY
PARTLY CLOUDY. LOWS 35 TO 40. HIGHS 65 TO 75.
SUNDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 65 TO 75.
MTZ016>027-059>062-201000-
NORTHEAST MONTANA-
NATIONAL WEATHER SERVICE GLASGOW MT
400 PM MDT TUE MAY 19 2026
REST OF TODAY
SUNNY. HIGHS IN THE LOWER TO MID 60S.
TONIGHT
MOSTLY CLOUDY. LOWS NEAR 40.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING THEN BECOMING 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 IN THE MID 60S TO LOWER 70S. 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>068-201000-
SOUTH CENTRAL AND SOUTHEAST MONTANA-
NATIONAL WEATHER SERVICE BILLINGS MT
400 PM MDT TUE MAY 19 2026
TONIGHT
MOSTLY 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, SNOW SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS WEST...AND CHANCE OF SHOWERS EAST. LOWS
IN THE MID 30S TO THE MID 40S.
THURSDAY
MOSTLY CLOUDY. SHOWERS, SNOW SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS WEST...AND CHANCE OF SHOWERS EAST. HIGHS
AROUND 50 TO THE LOWER 60S.
THURSDAY NIGHT...MOSTLY CLOUDY. AREAS OF FROST WEST
AND CHANCE
OF SHOWERS EAST. LOWS IN THE LOWER 30S TO AROUND 40.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S TO
THE MID 40S. HIGHS IN THE LOWER 60S TO THE LOWER 70S.
SATURDAY
SUNNY. HIGHS IN THE LOWER 70S TO THE LOWER 80S.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S
TO THE LOWER 50S. HIGHS IN THE UPPER 70S TO THE UPPER 80S.
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