National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

Malmstrom Air Force Base (KGFA)

Lat: 47.5°NLon: 111.18333°WElev: 3527.0ft.

Overcast

57°F

14°C

Humidity 52%
Wind Speed N 0 MPH
Barometer 29.73 in (1006.77 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 04 Sep 04:55 AM MDT
Extended Forecast for

Great Falls MT

  • Today

    Today: Sunny, with a high near 78. Light west wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers between 2am and 4am. Partly cloudy, with a low around 48. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 48 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers after 5pm. Partly sunny, with a high near 75. Light northwest wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 75 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 48. North northeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after noon. Partly sunny, with a high near 74. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 74 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 49. North northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Labor Day

    Labor Day: Showers likely, then showers and possibly a thunderstorm after noon. High near 69. Light west wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    High: 69 °F

    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 36 mph.

    Low: 46 °F

    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: A slight chance of showers before noon. Mostly sunny, with a high near 70. Breezy.

    High: 70 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 78. Light west wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Tonight
A 20 percent chance of showers between 2am and 4am. Partly cloudy, with a low around 48. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Saturday
A 20 percent chance of showers after 5pm. Partly sunny, with a high near 75. Light northwest wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Saturday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 48. North northeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
Sunday
A 20 percent chance of showers after noon. Partly sunny, with a high near 74. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Sunday Night
Showers and possibly a thunderstorm. Low around 49. North northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 90%.
Labor Day
Showers likely, then showers and possibly a thunderstorm after noon. High near 69. Light west wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Monday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 36 mph.
Tuesday
A slight chance of showers before noon. Mostly sunny, with a high near 70. Breezy.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.52°N 111.28°W (Elev. 3399 ft)
Last Update:
12:31 am MDT Sep 4, 2026
Forecast Valid:
5am MDT Sep 4, 2026-6pm MDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation