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

Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

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

unknown precip

28°F

-2°C

Humidity 87%
Wind Speed SE 13 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill17°F (-8°C)
Last update 16 Mar 08:15 AM MDT
Extended Forecast for

Marysville MT

  • Today

    Today: A slight chance of snow before 11am, then a slight chance of rain and snow between 11am and noon, then a chance of rain after noon. Patchy blowing snow before noon. Mostly cloudy, with a high near 42. Breezy, with a west southwest wind 18 to 24 mph, with gusts as high as 45 mph. Chance of precipitation is 30%. Total daytime snow accumulation of less than a half inch possible.

    High: 42 °F

    Chance
    Rain/Snow and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 39. Breezy, with a west southwest wind 23 to 28 mph, with gusts as high as 50 mph.

    Low: 39 °F

    Breezy.
    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 50. Breezy, with a west wind 23 to 29 mph, with gusts as high as 50 mph.

    High: 50 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 41. Breezy, with a west southwest wind 18 to 23 mph, with gusts as high as 40 mph.

    Low: 41 °F

    Slight Chance
    Rain then
    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: A 20 percent chance of rain. Mostly sunny, with a high near 54. Breezy, with a west wind 25 to 28 mph, with gusts as high as 49 mph.

    High: 54 °F

    Slight Chance
    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. Breezy, with a southwest wind 17 to 26 mph, with gusts as high as 46 mph.

    Low: 42 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 60. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 40 mph.

    High: 60 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 39 mph.

    Low: 46 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: A slight chance of rain after noon. Mostly sunny, with a high near 60. Breezy.

    High: 60 °F

    Mostly Sunny
    then Slight
    Chance Rain
    and Breezy

Detailed Forecast

Today
A slight chance of snow before 11am, then a slight chance of rain and snow between 11am and noon, then a chance of rain after noon. Patchy blowing snow before noon. Mostly cloudy, with a high near 42. Breezy, with a west southwest wind 18 to 24 mph, with gusts as high as 45 mph. Chance of precipitation is 30%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 30 percent chance of rain, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 39. Breezy, with a west southwest wind 23 to 28 mph, with gusts as high as 50 mph.
Tuesday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 50. Breezy, with a west wind 23 to 29 mph, with gusts as high as 50 mph.
Tuesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 41. Breezy, with a west southwest wind 18 to 23 mph, with gusts as high as 40 mph.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 54. Breezy, with a west wind 25 to 28 mph, with gusts as high as 49 mph.
Wednesday Night
Partly cloudy, with a low around 42. Breezy, with a southwest wind 17 to 26 mph, with gusts as high as 46 mph.
Thursday
Mostly sunny, with a high near 60. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 40 mph.
Thursday Night
Partly cloudy, with a low around 46. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 39 mph.
Friday
A slight chance of rain after noon. Mostly sunny, with a high near 60. Breezy.
Friday Night
A chance of rain. Mostly cloudy, with a low around 43. Breezy.
Saturday
A chance of rain. Partly sunny, with a high near 53. Breezy.
Saturday Night
Mostly clear, with a low around 32. Breezy.
Sunday
A slight chance of snow. Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marysville MT
 46.75°N 112.29°W (Elev. 5456 ft)
Last Update:
3:57 am MDT Mar 16, 2026
Forecast Valid:
8am MDT Mar 16, 2026-6pm MDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation