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.

Overcast

39°F

4°C

Humidity 80%
Wind Speed S 4 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 09 Dec 09:55 PM MST
Extended Forecast for

8 Miles W Hamilton MT

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Temperature rising to around 33 by 5am. West southwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 45 mph.  Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 8 inches possible.

    Low: 26 °F

    Heavy Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, mainly before 3pm.  High near 37. Windy, with a west southwest wind 26 to 33 mph, with gusts as high as 65 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow and
    Windy

  • Wednesday Night

    Wednesday Night: Rain and snow likely, mainly before 11pm.  Mostly cloudy, with a low around 35. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 65 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow
    Likely and
    Windy

  • Thursday

    Thursday: Rain and snow.  High near 37. Windy, with a west southwest wind 30 to 32 mph, with gusts as high as 65 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow and
    Windy

  • Thursday Night

    Thursday Night: Snow.  Low around 33. West wind 16 to 20 mph, with gusts as high as 46 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 33 °F

    Snow

  • Friday

    Friday: Snow before 2pm, then a chance of rain and snow.  High near 35. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Snow then
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 30. Breezy.  New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow
    and Breezy

  • Saturday

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

    High: 34 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow. The snow could be heavy at times. Temperature rising to around 33 by 5am. West southwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 8 inches possible.
Wednesday
Rain, possibly mixed with snow, mainly before 3pm. High near 37. Windy, with a west southwest wind 26 to 33 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely, mainly before 11pm. Mostly cloudy, with a low around 35. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 65 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Rain and snow. High near 37. Windy, with a west southwest wind 30 to 32 mph, with gusts as high as 65 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow. Low around 33. West wind 16 to 20 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow before 2pm, then a chance of rain and snow. High near 35. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 30. Breezy. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow, mainly before 11am. Partly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
A chance of snow. Partly sunny, with a high near 35.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 29.
Monday
A chance of snow. Partly sunny, with a high near 35.
Monday Night
Snow likely. Mostly cloudy, with a low around 30.
Tuesday
Snow. Mostly cloudy, with a high near 33. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Hamilton MT
 46.26°N 114.33°W (Elev. 7018 ft)
2:21 pm MST Dec 9, 2025
10pm MST Dec 9, 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