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

Heat Persists Across the Central and Western U.S.; Fire Weather Concerns in the Rockies and High Plains

Record-breaking heat expected in the Central and Western U.S. for the next several days. Gusty winds and low relative humidity will create elevated to critical fire weather conditions over portions of the Rockies and High Plains Wednesday and Thursday. Rain and mountain snow are possible across the Pacific Northwest into the Rockies through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Sieben I-15 MP 216 (MTSBN)

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

unknown precip

49°F

9°C

Humidity 69%
Wind Speed WNW 10 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 25 Mar 05:15 AM MDT
Extended Forecast for

Marysville MT

Red Flag Warning March 25, 12:00pm until March 25, 07:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: A 30 percent chance of rain. Mostly cloudy, with a low around 43. West southwest wind around 18 mph, with gusts as high as 33 mph.

    Low: 43 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain before 2pm, then a chance of rain and snow between 2pm and 5pm, then a chance of rain after 5pm. Partly sunny, with a high near 49. Breezy, with a west wind 18 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 49 °F

    Chance Rain
    then Chance
    Rain/Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 3am, then a slight chance of snow after 5am. Partly cloudy, with a low around 26. West wind 15 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: Sunny, with a high near 36. Breezy, with a west wind around 23 mph, with gusts as high as 40 mph.

    High: 36 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. Breezy, with a west wind 18 to 23 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 38 mph.

    Low: 24 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 49. South wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31. West southwest wind 5 to 9 mph.

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57. West southwest wind 6 to 11 mph, with gusts as high as 23 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain. Mostly cloudy, with a low around 43. West southwest wind around 18 mph, with gusts as high as 33 mph.
Wednesday
A chance of rain before 2pm, then a chance of rain and snow between 2pm and 5pm, then a chance of rain after 5pm. Partly sunny, with a high near 49. Breezy, with a west wind 18 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain and snow before 3am, then a slight chance of snow after 5am. Partly cloudy, with a low around 26. West wind 15 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 36. Breezy, with a west wind around 23 mph, with gusts as high as 40 mph.
Thursday Night
Mostly clear, with a low around 24. Breezy, with a west wind 18 to 23 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 38 mph.
Friday
Sunny, with a high near 49. South wind 6 to 10 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 31. West southwest wind 5 to 9 mph.
Saturday
Mostly sunny, with a high near 57. West southwest wind 6 to 11 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 38.
Monday
A chance of rain and snow. Partly sunny, with a high near 55.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 32.
Tuesday
A chance of snow. Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marysville MT
 46.75°N 112.29°W (Elev. 5456 ft)
Last Update:
5:02 am MDT Mar 25, 2026
Forecast Valid:
5am MDT Mar 25, 2026-6pm MDT Mar 31, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation