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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

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 58%
Wind Speed SSW 13 MPH
Barometer 29.43 in (996.61 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 26 Dec 11:53 PM MST
Extended Forecast for

Great Falls MT

Cold Weather Advisory December 27, 10:00am until December 27, 10:00pm
Click here for hazard details and duration
Cold Weather Advisory

  • Overnight

    Overnight: A slight chance of snow before 3am, then a slight chance of snow after 4am. Mostly cloudy, with a steady temperature around 35. Breezy, with a south southwest wind 17 to 25 mph becoming west northwest. Winds could gust as high as 36 mph. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Snow and
    Breezy

  • Saturday

    Saturday: A 50 percent chance of snow, mainly before noon. Cloudy, with a temperature falling to around 6 by 5pm. Wind chill values as low as -20. Blustery, with a north northwest wind 20 to 25 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 36 mph. New snow accumulation of less than one inch possible.

    High: 9 °F⇓

    Chance Snow
    and Blustery
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around -5. Wind chill values as low as -15. West northwest wind 5 to 9 mph becoming south southwest after midnight.

    Low: -5 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 25. Light south southwest wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 20 mph.

    High: 25 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16. Southwest wind 11 to 13 mph, with gusts as high as 18 mph.

    Low: 16 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 40. Southwest wind around 14 mph, with gusts as high as 25 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow before 3am, then a slight chance of snow after 4am. Mostly cloudy, with a steady temperature around 35. Breezy, with a south southwest wind 17 to 25 mph becoming west northwest. Winds could gust as high as 36 mph. Chance of precipitation is 20%.
Saturday
A 50 percent chance of snow, mainly before noon. Cloudy, with a temperature falling to around 6 by 5pm. Wind chill values as low as -20. Blustery, with a north northwest wind 20 to 25 mph decreasing to 11 to 16 mph in the afternoon. Winds could gust as high as 36 mph. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around -5. Wind chill values as low as -15. West northwest wind 5 to 9 mph becoming south southwest after midnight.
Sunday
Sunny, with a high near 25. Light south southwest wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 16. Southwest wind 11 to 13 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 40. Southwest wind around 14 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 28. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 48. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 21.
New Year's Day
Mostly cloudy, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Mostly cloudy, with a high near 46.
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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:
11:57 pm MST Dec 26, 2025
Forecast Valid:
12am MST Dec 27, 2025-6pm MST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation