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

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

41°F

5°C

Humidity 80%
Wind Speed S 9 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 10 Dec 12:35 AM MST
Extended Forecast for

13 Miles WNW Hamilton MT

  • Overnight

    Overnight: Rain, possibly mixed with snow. The snow could be heavy at times. Low around 28. West southwest wind 10 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.

    Low: 28 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all rain after 7am. High near 40. Breezy, with a west southwest wind 23 to 29 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 40 °F

    Breezy.
    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain likely, possibly mixed with snow, mainly before 11pm. Mostly cloudy, with a low around 35. Breezy, with a west southwest wind 26 to 28 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday

    Thursday: Rain, possibly mixed with snow. High near 40. Breezy, with a west southwest wind 25 to 28 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: Rain and snow. Low around 35. West wind 14 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow

  • Friday

    Friday: Rain and snow before 2pm, then a chance of rain. High near 39. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of snow before 2pm, then a slight chance of rain and snow. Partly sunny, with a high near 38.

    High: 38 °F

    Chance Snow
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of snow after 11pm. Partly cloudy, with a low around 29.

    Low: 29 °F

    Slight Chance
    Snow

Detailed Forecast

Overnight
Rain, possibly mixed with snow. The snow could be heavy at times. Low around 28. West southwest wind 10 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.
Wednesday
Rain, possibly mixed with snow, becoming all rain after 7am. High near 40. Breezy, with a west southwest wind 23 to 29 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Rain likely, possibly mixed with snow, mainly before 11pm. Mostly cloudy, with a low around 35. Breezy, with a west southwest wind 26 to 28 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Rain, possibly mixed with snow. High near 40. Breezy, with a west southwest wind 25 to 28 mph, with gusts as high as 55 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Rain and snow. Low around 35. West wind 14 to 20 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday
Rain and snow before 2pm, then a chance of rain. High near 39. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday Night
A chance of rain before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow before 2pm, then a slight chance of rain and snow. Partly sunny, with a high near 38.
Saturday Night
A slight chance of snow after 11pm. Partly cloudy, with a low around 29.
Sunday
A chance of snow before 2pm, then a chance of rain and snow. Partly sunny, with a high near 38.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 29.
Monday
A chance of rain and snow. Partly sunny, with a high near 39.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Tuesday
Snow. Mostly cloudy, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles WNW Hamilton MT
 46.27°N 114.43°W (Elev. 6001 ft)
Last Update:
2:21 pm MST Dec 9, 2025
Forecast Valid:
12am MST Dec 10, 2025-6pm MST Dec 16, 2025
 
Forecast Discussion
 
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