094
FPUS65 KTFX 181538
AFPTFX
CENTRAL AND SOUTHWEST MONTANA AREA FORECAST
NATIONAL WEATHER SERVICE GREAT FALLS MT
938 AM MDT FRI SEP 18 2026
MTZ301>314-316>318-190000-
CENTRAL MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
938 AM MDT FRI SEP 18 2026
...FLASH FLOOD WATCH IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH
SATURDAY EVENING FOR LITTLE BELT AND HIGHWOOD MOUNTAINS...
REST OF TODAY
PARTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. HIGHS 70 TO 75...60 TO 70 IN THE MOUNTAINS.
TONIGHT
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS THROUGH THE
NIGHT. LOWS 45 TO 55...40 TO 50 IN THE MOUNTAINS.
SATURDAY
MOSTLY CLOUDY. CHANCE OF RAIN THROUGH THE DAY. CHANCE
OF RAIN SHOWERS IN THE AFTERNOON AND EVENING. HIGHS 60 TO 70...
50 TO 60 IN THE MOUNTAINS.
SUNDAY
PARTLY CLOUDY. 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>330-190000-
SOUTHWEST MONTANA-
NATIONAL WEATHER SERVICE GREAT FALLS MT
938 AM MDT FRI SEP 18 2026
...FLASH FLOOD WATCH IN EFFECT FROM 6 PM MDT THIS EVENING THROUGH
SATURDAY EVENING FOR BIG BELT, BRIDGER AND CASTLE
MOUNTAINS...ELKHORN AND BOULDER MOUNTAINS...GALLATIN VALLEY...
...FLASH FLOOD WATCH IN EFFECT FROM 3 PM MDT THIS AFTERNOON
THROUGH SATURDAY AFTERNOON FOR NORTHWEST BEAVERHEAD COUNTY...
REST OF TODAY
CHANCE OF RAIN SHOWERS LATE IN THE MORNING, THEN
RAIN SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE AFTERNOON.
HIGHS 60 TO 70...55 TO 65 IN THE MOUNTAINS.
TONIGHT
CLOUDY. RAIN SHOWERS LIKELY IN THE EVENING. CHANCE OF
THUNDERSTORMS THROUGH THE NIGHT. RAIN AFTER MIDNIGHT. PATCHY FOG
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.
LOWS 40 TO 50.
SATURDAY
CLOUDY. PATCHY FOG IN THE MORNING. RAIN SHOWERS AND
CHANCE OF THUNDERSTORMS THROUGH THE DAY. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL. HIGHS 55 TO 60...45 TO 55 IN THE
MOUNTAINS.
SUNDAY
PARTLY CLOUDY. PATCHY FOG. CHANCE OF RAIN SHOWERS. LOWS
40 TO 45. HIGHS 60 TO 70.
MONDAY
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 65 TO 75.
TUESDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 65 TO 75.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page