Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.

Overcast

63°F

17°C

Humidity 72%
Wind Speed NE 6 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 13 Aug 08:00 PM MDT
Extended Forecast for

4 Miles SE Great Falls International Airport MT

  • Tonight

    Tonight: Showers and possibly a thunderstorm.  Low around 49. North wind 7 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers

  • Friday

    Friday: Showers likely before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Cloudy, with a high near 64. North northwest wind around 7 mph.  Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am.  Mostly cloudy, with a low around 48. North northeast wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 78. Light and variable wind.

    High: 78 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. East northeast wind 5 to 7 mph becoming south southwest after midnight.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 84. South southwest wind around 6 mph becoming west northwest in the afternoon.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 52. North northwest wind 5 to 7 mph becoming southeast in the evening.

    Low: 52 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82. South southwest wind 5 to 7 mph becoming west in the afternoon.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 49. North wind 7 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 64. North northwest wind around 7 mph. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 48. North northeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 78. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 50. East northeast wind 5 to 7 mph becoming south southwest after midnight.
Sunday
Sunny, with a high near 84. South southwest wind around 6 mph becoming west northwest in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52. North northwest wind 5 to 7 mph becoming southeast in the evening.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. South southwest wind 5 to 7 mph becoming west in the afternoon.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 78.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Great Falls International Airport MT
 47.43°N 111.33°W (Elev. 3599 ft)
5:56 pm MDT Aug 13, 2026
8pm MDT Aug 13, 2026-6pm MDT Aug 20, 2026
 
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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