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

Tracking Areas of Fire Weather, Severe Weather, and Winter Weather

Gusty winds and dry conditions will continue to bring fire weather concerns to the southern Plains through Friday. Severe thunderstorms including a few tornadoes, large hail and damaging wind gusts are expected across parts of the Midwest and lower Ohio Valley today. A Pacific storm will bring low elevation rain and thunderstorms across southern California and heavy snow through the Sierra. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

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

NA

11°F

-12°C

Humidity 59%
Wind Speed SE 11 MPH
Barometer NA
Dewpoint -1°F (-18°C)
Visibility NA
Wind Chill-3°F (-19°C)
Last update 19 Feb 01:15 PM MST
Extended Forecast for

Marysville MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 18. East wind around 6 mph.

    High: 18 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 6. Wind chill values as low as -5. Southwest wind around 6 mph.

    Low: 6 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 24. Wind chill values as low as -5. West wind 6 to 13 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.

    High: 24 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 11. West southwest wind 7 to 13 mph, with gusts as high as 18 mph.

    Low: 11 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 28. West southwest wind around 7 mph becoming southeast in the afternoon.

    High: 28 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 15. East northeast wind around 7 mph.

    Low: 15 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 37. South southeast wind 6 to 8 mph.

    High: 37 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 18. East wind around 6 mph.
Tonight
Mostly clear, with a low around 6. Wind chill values as low as -5. Southwest wind around 6 mph.
Friday
A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 24. Wind chill values as low as -5. West wind 6 to 13 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a low around 11. West southwest wind 7 to 13 mph, with gusts as high as 18 mph.
Saturday
Mostly sunny, with a high near 28. West southwest wind around 7 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 15. East northeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 37. South southeast wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 24. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 45.
Monday Night
A slight chance of rain and snow before 11pm, then a slight chance of snow. Mostly cloudy, with a low around 32.
Tuesday
A chance of snow. Partly sunny, with a high near 38.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 28.
Wednesday
A chance of snow. Partly sunny, with a high near 38. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marysville MT
 46.75°N 112.29°W (Elev. 5456 ft)
Last Update:
12:37 pm MST Feb 19, 2026
Forecast Valid:
1pm MST Feb 19, 2026-6pm MST Feb 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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