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

48°F

9°C

Humidity 57%
Wind Speed SSW 6 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 21 Apr 03:35 AM MDT
Extended Forecast for

Great Falls MT

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 47. Southwest wind around 5 mph.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Calm wind becoming east southeast 5 to 8 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. East wind 5 to 10 mph becoming south southwest after midnight.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm, mainly after 3pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 74. South southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%.

    High: 74 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 9pm, then rain after 9pm. Low around 30. West wind 18 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.

    Low: 30 °F

    Showers

  • Thursday

    Thursday: Snow. High near 40. Northwest wind around 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 40 °F

    Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 27. Northwest wind 9 to 16 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Friday

    Friday: A chance of snow. Mostly cloudy, with a high near 41. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    High: 41 °F

    Chance Snow

  • Friday Night

    Friday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 47. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 82. Calm wind becoming east southeast 5 to 8 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 47. East wind 5 to 10 mph becoming south southwest after midnight.
Wednesday
Showers likely and possibly a thunderstorm, mainly after 3pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 74. South southwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Wednesday Night
Showers and possibly a thunderstorm before 9pm, then rain after 9pm. Low around 30. West wind 18 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.
Thursday
Snow. High near 40. Northwest wind around 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 27. Northwest wind 9 to 16 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Friday
A chance of snow. Mostly cloudy, with a high near 41. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Friday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 23.
Saturday
A slight chance of snow after noon. Partly sunny, with a high near 44.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 23.
Sunday
A slight chance of snow. Partly sunny, with a high near 47.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
A slight chance of rain and snow. Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.51°N 111.31°W (Elev. 3399 ft)
Last Update:
12:31 am MDT Apr 21, 2026
Forecast Valid:
3am MDT Apr 21, 2026-6pm MDT Apr 27, 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