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

Great Falls, Great Falls International Airport (KGTF)

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

Clear

37°F

3°C

Humidity 74%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 19 Oct 06:20 AM MDT
Extended Forecast for

Sun Prairie MT

  • Today

    Today: Sunny, with a high near 72. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. South southeast wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Light and variable wind becoming northwest around 5 mph.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. Light and variable wind.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. South wind 3 to 5 mph.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 71. Light south southwest wind.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 43. East wind around 5 mph becoming light and variable.

    Low: 43 °F

    Rain Likely

  • Friday

    Friday: Rain likely. Cloudy, with a high near 52. Breezy.

    High: 52 °F

    Rain Likely
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 72. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Tonight
Partly cloudy, with a low around 38. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 58. Light and variable wind becoming northwest around 5 mph.
Tuesday Night
Partly cloudy, with a low around 35. Light and variable wind.
Wednesday
Sunny, with a high near 71. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 41. South wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 71. Light south southwest wind.
Thursday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 43. East wind around 5 mph becoming light and variable.
Friday
Rain likely. Cloudy, with a high near 52. Breezy.
Friday Night
A chance of rain before 3am, then a slight chance of rain and snow. Mostly cloudy, with a low around 33.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
A slight chance of rain and snow. Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie MT
 47.54°N 111.5°W (Elev. 3399 ft)
Last Update:
4:01 am MDT Oct 19, 2026
Forecast Valid:
6am MDT Oct 19, 2026-6pm MDT Oct 25, 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