Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Current conditions at

Ravalli County Airport (KHRF)

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

Rain

39°F

4°C

Humidity 93%
Wind Speed SSW 14 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 37°F (3°C)
Visibility 7.00 mi
Wind Chill31°F (-1°C)
Last update 10 Dec 02:55 AM MST
Extended Forecast for

12 Miles ESE Corvallis MT

  • Overnight

    Overnight: Snow. The snow could be heavy at times.  Steady temperature around 29. West southwest wind around 17 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.

    Low: 29 °F

    Heavy Snow

  • Wednesday

    Wednesday: Rain and snow, mainly before 2pm.  High near 34. West southwest wind around 18 mph, with gusts as high as 40 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 11pm, then a slight chance of rain and snow after 2am.  Mostly cloudy, with a low around 31. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 40 mph.  Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance
    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Rain and snow, becoming all snow after 2pm.  High near 34. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 39 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Snow.  Low around 31. West wind around 14 mph, with gusts as high as 31 mph.  Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    Low: 31 °F

    Snow

  • Friday

    Friday: Snow likely, mainly before 11am.  Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 33 °F

    Snow Likely
    then Chance
    Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow.  Mostly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A slight chance of snow before 11am.  Mostly sunny, with a high near 34.

    High: 34 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Steady temperature around 29. West southwest wind around 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.
Wednesday
Rain and snow, mainly before 2pm. High near 34. West southwest wind around 18 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
A chance of rain and snow before 11pm, then a slight chance of rain and snow after 2am. Mostly cloudy, with a low around 31. Breezy, with a southwest wind 18 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Thursday
Rain and snow, becoming all snow after 2pm. High near 34. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
Snow. Low around 31. West wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Friday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 27.
Saturday
A slight chance of snow before 11am. Mostly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
A slight chance of snow after 11am. Mostly sunny, with a high near 35.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
A chance of snow. Partly sunny, with a high near 33.
Monday Night
Snow likely. Mostly cloudy, with a low around 28.
Tuesday
Snow. Mostly cloudy, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Corvallis MT
 46.26°N 113.87°W (Elev. 8048 ft)
1:02 am MST Dec 10, 2025
3am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
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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