Area Forecast Product
Issued by NWS Great Falls, MT

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FPUS65 KTFX 212138
AFPTFX

Central and Southwest Montana Area Forecast
National Weather Service Great Falls MT
337 PM MDT Fri Aug 21 2026

MTZ301>314-316>318-221200-
Central Montana-
National Weather Service Great Falls MT
337 PM MDT Fri Aug 21 2026


.TONIGHT...Increasing clouds. Lows 55 to 65.
.SATURDAY...Mostly cloudy. Slight chance of showers. Highs 85 to
90...75 to 85 in the mountains.
.SATURDAY NIGHT...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows 55 to 65.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Highs 85 to 95.
.MONDAY...Mostly clear. Lows 50 to 60. Highs 75 to 85.
.TUESDAY...Mostly clear. Lows 50 to 55. Highs 80 to 85.
.WEDNESDAY...Partly cloudy. Slight chance of showers. Lows 55 to
60. Highs 80 to 90.

$$

MTZ315-319>330-221200-
Southwest Montana-
National Weather Service Great Falls MT
337 PM MDT Fri Aug 21 2026


.TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the
evening. Slight chance of showers through the night. Lows 55 to
60.
.SATURDAY...Mostly cloudy. Chance of showers through the day.
Chance of thunderstorms in the afternoon. Highs 80 to 90...70 to
80 in the mountains.
.SATURDAY NIGHT...Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms. Lows 50 to 60.
.SUNDAY...Partly cloudy. Chance of rain showers and slight chance
of thunderstorms. Highs 75 to 85.
.MONDAY...Mostly clear. Lows 45 to 55. Highs 75 to 85.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 50 to 55. Highs 75 to 85.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 50 to 55. Highs 75 to 85.

$$