761
FPUS65 KTFX 171834
AFPTFX
CENTRAL AND SOUTHWEST MONTANA AREA FORECAST
NATIONAL WEATHER SERVICE GREAT FALLS MT
1233 PM MDT THU SEP 17 2026
MTZ301>314-316>318-180000-
CENTRAL MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
1233 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 TODAY
PARTLY CLOUDY. HIGHS 70 TO 75.
TONIGHT
MOSTLY CLOUDY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. LOWS 45 TO 55.
FRIDAY
INCREASING CLOUDS. SLIGHT CHANCE OF THUNDERSTORMS IN
THE EVENING. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
EVENING. HIGHS 70 TO 75...60 TO 70 IN THE MOUNTAINS.
SATURDAY
MOSTLY CLOUDY. CHANCE OF RAIN. LOWS 45 TO 50. 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.
MTZ315-319>330-180000-
SOUTHWEST MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
1233 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 TODAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 70 TO 80...60 TO 70 IN THE
MOUNTAINS.
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 40 TO 50.
FRIDAY
MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.
HIGHS 60 TO 70...55 TO 65 IN THE MOUNTAINS.
SATURDAY
RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS
40 TO 50. 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.
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