Winter Storm System To Bring Widespread Impacts Across the Eastern Half of the U.S. Through Midweek

A developing winter storm system will bring a swath of heavy snow and ice from Oklahoma into the Midwest, Ohio Valley, Mid Atlantic, and the Northeast U.S. Tuesday through Wednesday. Areas of dangerous travel are likely. Further South, several inches of heavy rain will lead to the potential for flooding in the lower Mississippi and Tennessee River Valleys. Read More >

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675ft.

Fair

-6°F

-21°C

Humidity 84%
Wind Speed S 12 MPH
Barometer 29.97 in
Dewpoint -9°F (-23°C)
Visibility 10.00 mi
Wind Chill-25°F (-32°C)
Last update 19 Feb 1:15 am MST
Extended Forecast for

Great Falls MT

Winter Weather Advisory until February 19, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until February 19, 09:00pm

    NOW until
    9:00pm Tue

    Winter Weather Advisory

  • Overnight

    Overnight: Clear, with a low around -21. Wind chill values as low as -36. South southwest wind 9 to 11 mph.

    Clear

    Low: -21 °F

  • Tuesday

    Tuesday: Patchy blowing snow. Sunny, with a high near 22. Wind chill values as low as -31. Southwest wind 13 to 16 mph, with gusts as high as 23 mph.

    Patchy
    Blowing Snow

    High: 22 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of snow after 11pm.  Patchy blowing snow before 9pm. Increasing clouds, with a steady temperature around 16. Wind chill values as low as -5. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.  New snow accumulation of less than a half inch possible.

    Chance Snow
    and Patchy
    Blowing Snow

    Low: 16 °F

  • Wednesday

    Wednesday: A 30 percent chance of snow.  Cloudy, with a high near 22. Wind chill values as low as -2. West southwest wind 5 to 7 mph becoming north northwest in the afternoon.  New snow accumulation of less than a half inch possible.

    Chance Snow

    High: 22 °F

  • Wednesday
    Night

    Wednesday Night: Snow likely, mainly after 11pm.  Cloudy, with a low around 3. North wind 5 to 10 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Snow Likely

    Low: 3 °F

  • Thursday

    Thursday: Snow likely, mainly before 11am.  Mostly cloudy, with a high near 12. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Snow Likely

    High: 12 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around -9.

    Partly Cloudy

    Low: -9 °F

  • Friday

    Friday: Sunny, with a high near 19.

    Sunny

    High: 19 °F

Detailed Forecast

Overnight
Clear, with a low around -21. Wind chill values as low as -36. South southwest wind 9 to 11 mph.
Tuesday
Patchy blowing snow. Sunny, with a high near 22. Wind chill values as low as -31. Southwest wind 13 to 16 mph, with gusts as high as 23 mph.
Tuesday Night
A 30 percent chance of snow after 11pm. Patchy blowing snow before 9pm. Increasing clouds, with a steady temperature around 16. Wind chill values as low as -5. Southwest wind 8 to 10 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.
Wednesday
A 30 percent chance of snow. Cloudy, with a high near 22. Wind chill values as low as -2. West southwest wind 5 to 7 mph becoming north northwest in the afternoon. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow likely, mainly after 11pm. Cloudy, with a low around 3. North wind 5 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 12. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday Night
Partly cloudy, with a low around -9.
Friday
Sunny, with a high near 19.
Friday Night
Mostly cloudy, with a low around 6.
Saturday
Partly sunny, with a high near 23.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 3.
Sunday
A chance of snow. Mostly cloudy, with a high near 12.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around -8.
Monday
A slight chance of snow. Mostly cloudy and cold, with a high near 5.
Click Map For Forecast
Point Forecast:
Great Falls MT
 47.49°N 111.31°W (Elev. 3399 ft)
8:21 pm MST Feb 18, 2019
2am MST Feb 19, 2019-6pm MST Feb 25, 2019
 
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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