378
FPUS65 KTFX 180214
AFPTFX
CENTRAL AND SOUTHWEST MONTANA AREA FORECAST
NATIONAL WEATHER SERVICE GREAT FALLS MT
813 PM MDT THU SEP 17 2026
MTZ301>314-316>318-181200-
CENTRAL MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
813 PM MDT THU SEP 17 2026
...FLASH FLOOD WATCH IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY EVENING FOR LITTLE BELT AND HIGHWOOD MOUNTAINS...
REST OF TONIGHT
MOSTLY CLOUDY EARLY IN THE EVENING THEN
BECOMING PARTLY CLOUDY. LOWS 45 TO 55.
FRIDAY...PARTLY CLOUDY. HIGHS 70 TO 75
60 TO 70 IN THE
MOUNTAINS.
FRIDAY NIGHT
CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.
LOWS 45 TO 55.
SATURDAY
MOSTLY CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.
HIGHS 60 TO 70.
SUNDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 45 TO 50. HIGHS
65 TO 75.
MONDAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 70 TO 75.
TUESDAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 70 TO 80.
MTZ315-319>330-181200-
SOUTHWEST MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
813 PM MDT THU SEP 17 2026
...FLASH FLOOD WATCH IN EFFECT FROM FRIDAY EVENING THROUGH
SATURDAY EVENING FOR BIG BELT, BRIDGER AND CASTLE
MOUNTAINS...ELKHORN AND BOULDER MOUNTAINS...GALLATIN VALLEY...
...FLASH FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON FOR NORTHWEST BEAVERHEAD COUNTY...
REST OF TONIGHT
PARTLY CLOUDY EARLY IN THE EVENING THEN
BECOMING MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS EARLY IN
THE EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE NIGHT.
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS 40 TO 50.
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL. HIGHS 60 TO 70...
55 TO 65 IN THE MOUNTAINS.
FRIDAY NIGHT
CLOUDY. RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.
LOWS 40 TO 50.
SATURDAY
CLOUDY. RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.
HIGHS 50 TO 60.
SUNDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 40 TO 45. HIGHS
60 TO 70.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 65 TO 75.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 40 TO 50.
HIGHS 65 TO 75.
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