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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

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

Clear

34°F

1°C

Humidity 47%
Wind Speed SSE 9 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 01 Jan 07:05 AM MST
Extended Forecast for

Great Falls MT

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 48. Southwest wind 3 to 7 mph.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of rain and snow, mainly between 11pm and 5am. Cloudy, with a steady temperature around 39. Southwest wind around 9 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 39 °F

    Chance
    Rain/Snow

  • Friday

    Friday: Mostly cloudy, with a high near 53. Breezy, with a southwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 53 °F

    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. Breezy, with a southwest wind 17 to 22 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 31 mph.

    Low: 37 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 52. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 52 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35. South southwest wind around 10 mph.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54. Southwest wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35. South southwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

New Year's Day
Partly sunny, with a high near 48. Southwest wind 3 to 7 mph.
Tonight
A chance of rain and snow, mainly between 11pm and 5am. Cloudy, with a steady temperature around 39. Southwest wind around 9 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
Mostly cloudy, with a high near 53. Breezy, with a southwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 37. Breezy, with a southwest wind 17 to 22 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 31 mph.
Saturday
Partly sunny, with a high near 52. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 35. South southwest wind around 10 mph.
Sunday
Mostly sunny, with a high near 54. Southwest wind 11 to 17 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 35. South southwest wind around 11 mph, with gusts as high as 21 mph.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 48. Breezy.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly sunny, with a high near 47.
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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:
3:32 am MST Jan 1, 2026
Forecast Valid:
7am MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation