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

47°F

8°C

Humidity 49%
Wind Speed SSW 8 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 20 Apr 12:53 AM MDT
Extended Forecast for

Great Falls MT

  • Overnight

    Overnight: Partly cloudy, with a low around 39. West southwest wind around 7 mph.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 77. West southwest wind 5 to 8 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. Southwest wind 5 to 9 mph.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. South wind 3 to 7 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. Southeast wind 6 to 10 mph becoming south southwest after midnight.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm, mainly after 3pm. Partly sunny, with a high near 72. Southwest wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%.

    High: 72 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Rain before 3am, then rain and snow. Some thunder is also possible. Low around 30. Blustery, with a northwest wind 18 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 30 °F

    Blustery.
    Showers then
    Rain/Snow

  • Thursday

    Thursday: Snow, mainly before noon. Mostly cloudy, with a high near 42. Breezy, with a northwest wind 18 to 24 mph, with gusts as high as 34 mph.

    High: 42 °F

    Snow and
    Breezy

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 39. West southwest wind around 7 mph.
Monday
Sunny, with a high near 77. West southwest wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around 42. Southwest wind 5 to 9 mph.
Tuesday
Mostly sunny, with a high near 82. South wind 3 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 47. Southeast wind 6 to 10 mph becoming south southwest after midnight.
Wednesday
Showers likely and possibly a thunderstorm, mainly after 3pm. Partly sunny, with a high near 72. Southwest wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%.
Wednesday Night
Rain before 3am, then rain and snow. Some thunder is also possible. Low around 30. Blustery, with a northwest wind 18 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Thursday
Snow, mainly before noon. Mostly cloudy, with a high near 42. Breezy, with a northwest wind 18 to 24 mph, with gusts as high as 34 mph.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 27.
Friday
A chance of snow. Partly sunny, with a high near 42.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.51°N 111.31°W (Elev. 3399 ft)
Last Update:
12:31 am MDT Apr 20, 2026
Forecast Valid:
1am MDT Apr 20, 2026-6pm MDT Apr 26, 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