Current conditions at

Great Falls, Great Falls International Airport (KGTF)

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

Overcast

45°F

7°C

Humidity 70%
Wind Speed SSW 10 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 20 May 03:05 AM MDT
Extended Forecast for

Sun Prairie MT

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 42. Southwest wind around 7 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 57. West southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly before 9pm.  Cloudy, then gradually becoming partly cloudy, with a low around 34. North wind 5 to 8 mph becoming west in the evening.

    Low: 34 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 10am and 11am.  Partly sunny, with a high near 62. Northwest wind around 7 mph.  Chance of precipitation is 20%.

    High: 62 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36. Northwest wind around 6 mph becoming light and variable  after midnight.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72. West southwest wind 3 to 5 mph.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. West wind around 5 mph becoming light and variable.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Southwest wind 5 to 8 mph.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 42. Southwest wind around 7 mph.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 57. West southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 50 percent chance of showers, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 34. North wind 5 to 8 mph becoming west in the evening.
Thursday
A slight chance of showers between 10am and 11am. Partly sunny, with a high near 62. Northwest wind around 7 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 36. Northwest wind around 6 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 72. West southwest wind 3 to 5 mph.
Friday Night
Partly cloudy, with a low around 42. West wind around 5 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 79. Southwest wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 50.
Memorial Day
Mostly sunny, with a high near 84.
Monday Night
A chance of rain. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain and thunderstorms. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie MT
 47.54°N 111.47°W (Elev. 3399 ft)
3:02 am MDT May 20, 2026
3am MDT May 20, 2026-6pm MDT May 26, 2026
 
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Additional Resources

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National Digital Forecast Database