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

46°F

8°C

Humidity 75%
Wind Speed SSW 16 MPH
Barometer 29.66 in (1004.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 12 Apr 01:10 AM MDT
Extended Forecast for

Great Falls MT

  • Overnight

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

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 59. West southwest wind 5 to 10 mph becoming northeast in the afternoon.

    High: 59 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Rain and thunderstorms before 1am, then rain likely. Low around 38. Northeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain

  • Monday

    Monday: Rain. High near 59. West southwest wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    High: 59 °F

    Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 39. Southwest wind around 14 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Chance Rain
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. Breezy, with a southwest wind 14 to 24 mph, with gusts as high as 36 mph.

    High: 60 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. West southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 32 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain after noon. Mostly cloudy, with a high near 59. Southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 59 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 9pm, then rain and snow likely between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Rain/Snow
    Likely then
    Chance Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 39. Southwest wind around 7 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 59. West southwest wind 5 to 10 mph becoming northeast in the afternoon.
Sunday Night
Rain and thunderstorms before 1am, then rain likely. Low around 38. Northeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain. High near 59. West southwest wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Monday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 39. Southwest wind around 14 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 60. Breezy, with a southwest wind 14 to 24 mph, with gusts as high as 36 mph.
Tuesday Night
Mostly cloudy, with a low around 41. West southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 32 mph.
Wednesday
A chance of rain after noon. Mostly cloudy, with a high near 59. Southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Wednesday Night
Rain likely before 9pm, then rain and snow likely between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 29.
Thursday
A chance of snow. Mostly cloudy, with a high near 41.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 23.
Friday
A slight chance of snow. Mostly sunny, with a high near 50.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.49°N 111.31°W (Elev. 3399 ft)
Last Update:
12:32 am MDT Apr 12, 2026
Forecast Valid:
2am MDT Apr 12, 2026-6pm MDT Apr 18, 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