Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

Lat: 46.88748267°NLon: 112.1111196°WElev: 4199.0ft.

unknown precip

17°F

-8°C

Humidity 80%
Wind Speed ESE 14 MPH
Barometer NA
Dewpoint 12°F (-11°C)
Visibility NA
Wind Chill3°F (-16°C)
Last update 20 Feb 12:00 PM MST
Extended Forecast for

Marysville MT

  • This Afternoon

    This Afternoon: A 30 percent chance of snow, mainly before 1pm.  Partly sunny, with a high near 21. West wind 13 to 15 mph, with gusts as high as 28 mph.  Total daytime snow accumulation of less than a half inch possible.

    High: 21 °F

    Chance Snow

  • Tonight

    Tonight: Increasing clouds, with a low around 12. Wind chill values as low as zero. West wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 12 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 28. West southwest wind 5 to 7 mph becoming east in the afternoon.

    High: 28 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 15. East wind 5 to 8 mph becoming north in the evening.

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 37. South southeast wind 5 to 8 mph, with gusts as high as 18 mph.

    High: 37 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of snow before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm.  Mostly sunny, with a high near 43. Southwest wind 14 to 16 mph, with gusts as high as 32 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 43 °F

    Chance
    Rain/Snow

  • Monday Night

    Monday Night: A slight chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 2am, then a slight chance of snow after 2am.  Mostly cloudy, with a low around 35. West southwest wind around 17 mph, with gusts as high as 30 mph.

    Low: 35 °F

    Slight Chance
    Rain/Snow

  • Tuesday

    Tuesday: A slight chance of snow before 11am, then a chance of rain and snow.  Cloudy, with a high near 42.

    High: 42 °F

    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly before 1pm. Partly sunny, with a high near 21. West wind 13 to 15 mph, with gusts as high as 28 mph. Total daytime snow accumulation of less than a half inch possible.
Tonight
Increasing clouds, with a low around 12. Wind chill values as low as zero. West wind 6 to 13 mph, with gusts as high as 22 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 28. West southwest wind 5 to 7 mph becoming east in the afternoon.
Saturday Night
Mostly cloudy, with a low around 15. East wind 5 to 8 mph becoming north in the evening.
Sunday
Mostly sunny, with a high near 37. South southeast wind 5 to 8 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 28. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Monday
A slight chance of snow before 11am, then a chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Mostly sunny, with a high near 43. Southwest wind 14 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday Night
A slight chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 2am, then a slight chance of snow after 2am. Mostly cloudy, with a low around 35. West southwest wind around 17 mph, with gusts as high as 30 mph.
Tuesday
A slight chance of snow before 11am, then a chance of rain and snow. Cloudy, with a high near 42.
Tuesday Night
A slight chance of snow before 11pm. Mostly cloudy, with a low around 29. Breezy.
Wednesday
Partly sunny, with a high near 35. Breezy.
Wednesday Night
Partly cloudy, with a low around 27. Breezy.
Thursday
Mostly sunny, with a high near 40. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Marysville MT
 46.75°N 112.29°W (Elev. 5456 ft)
11:32 am MST Feb 20, 2026
12pm MST Feb 20, 2026-6pm MST Feb 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database