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

Critical Fire Weather in the High Plains; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Overcast

30°F

-1°C

Humidity 68%
Wind Speed SSW 4 MPH
Barometer 29.45 in (997.29 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 17 Feb 11:55 PM MST
Extended Forecast for

Corvallis MT

  • Overnight

    Overnight: A slight chance of snow before 2am, then a chance of snow after 3am. Mostly cloudy, with a low around 19. South southeast wind 3 to 8 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow, mainly before 5pm. High near 31. Southeast wind 9 to 11 mph becoming north in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow, mainly before 9pm. Mostly cloudy, with a low around 12. North wind around 6 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.

    Low: 12 °F

    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow after 11am. Mostly sunny, with a high near 33. Light and variable wind.

    High: 33 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 14. Light and variable wind.

    Low: 14 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of snow after 11am. Partly sunny, with a high near 34. Little or no snow accumulation expected.

    High: 34 °F

    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow before 2am, then a chance of snow after 3am. Mostly cloudy, with a low around 19. South southeast wind 3 to 8 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly before 5pm. High near 31. Southeast wind 9 to 11 mph becoming north in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
A 30 percent chance of snow, mainly before 9pm. Mostly cloudy, with a low around 12. North wind around 6 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.
Thursday
A 20 percent chance of snow after 11am. Mostly sunny, with a high near 33. Light and variable wind.
Thursday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 14. Light and variable wind.
Friday
A 40 percent chance of snow after 11am. Partly sunny, with a high near 34. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 13.
Saturday
Sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 16.
Sunday
Partly sunny, with a high near 44.
Sunday Night
Partly cloudy, with a low around 23.
Monday
A chance of rain. Partly sunny, with a high near 47.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 27.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Corvallis MT
 46.31°N 114.1°W (Elev. 3566 ft)
Last Update:
11:28 pm MST Feb 17, 2026
Forecast Valid:
12am MST Feb 18, 2026-6pm MST Feb 24, 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