Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Ravalli County Airport (KHRF)

Lat: 46.25463°NLon: 114.1246°WElev: 3644.0ft.

Clear

18°F

-8°C

Humidity 61%
Wind Speed SSW 3 MPH
Barometer 30.54 in (1034.2 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 28 Dec 10:10 AM MST
Extended Forecast for

Corvallis MT

  • Today

    Today: Sunny, with a high near 28. South wind around 5 mph becoming calm  in the afternoon.

    High: 28 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 8. Light south southeast wind.

    Low: 8 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. Light south southwest wind.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 21. Calm wind becoming south southwest around 5 mph.

    Low: 21 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 40. Light south wind.

    High: 40 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 28. South wind around 5 mph becoming calm in the afternoon.
Tonight
Partly cloudy, with a low around 8. Light south southeast wind.
Monday
Mostly sunny, with a high near 35. Light south southwest wind.
Monday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 21. Calm wind becoming south southwest around 5 mph.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 40. Light south wind.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 26.
New Year's Day
Partly sunny, with a high near 46.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 43.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 24.
Saturday
A chance of snow. Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Corvallis MT
 46.31°N 114.1°W (Elev. 3566 ft)
1:02 am MST Dec 28, 2025
10am MST Dec 28, 2025-6pm MST Jan 3, 2026
 
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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