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 >

Current conditions at

DEER MOUNTAIN (DMFW1)

Lat: 48.79608°NLon: 117.44594°WElev: 3340.0ft.

NA

35°F

2°C

Humidity 82%
Wind Speed WSW 2 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 09 Dec 04:56 PM PST
Extended Forecast for

11 Miles ESE Ione WA

  • Tonight

    Tonight: Snow after 7pm, mixing with rain after 5am. The snow could be heavy at times. Temperature rising to around 31 by 4am. South wind 6 to 9 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 8 inches possible.

    Low: 26 °F⇑

    Heavy Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow, becoming all rain after 7am. Snow level 7200 feet lowering to 6300 feet in the afternoon . High near 38. Southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain before 4am, then rain likely, possibly mixed with snow. Snow level 6200 feet. Low around 32. Southwest wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain then
    Rain/Snow

  • Thursday

    Thursday: Rain likely, possibly mixed with snow, becoming all snow after 7am. Mostly cloudy, with a high near 34. West wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 26. Northwest wind around 6 mph. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow

  • Friday

    Friday: Snow likely. Cloudy, with a high near 32. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Snow Likely

  • Friday Night

    Friday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 24. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow. Mostly cloudy, with a high near 30.

    High: 30 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow. Cloudy, with a low around 28.

    Low: 28 °F

    Chance Snow

Detailed Forecast

Tonight
Snow after 7pm, mixing with rain after 5am. The snow could be heavy at times. Temperature rising to around 31 by 4am. South wind 6 to 9 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 4 to 8 inches possible.
Wednesday
Rain and snow, becoming all rain after 7am. Snow level 7200 feet lowering to 6300 feet in the afternoon . High near 38. Southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain before 4am, then rain likely, possibly mixed with snow. Snow level 6200 feet. Low around 32. Southwest wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
Rain likely, possibly mixed with snow, becoming all snow after 7am. Mostly cloudy, with a high near 34. West wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26. Northwest wind around 6 mph. New snow accumulation of less than a half inch possible.
Friday
Snow likely. Cloudy, with a high near 32. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 24. New snow accumulation of less than a half inch possible.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 30.
Saturday Night
A 30 percent chance of snow. Cloudy, with a low around 28.
Sunday
A 50 percent chance of snow. Mostly cloudy, with a high near 31.
Sunday Night
Snow likely. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
Snow. High near 33. Chance of precipitation is 80%.
Monday Night
Snow, possibly mixed with rain. Low around 29. Chance of precipitation is 90%.
Tuesday
Snow likely. Mostly cloudy, with a high near 31. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ESE Ione WA
 48.7°N 117.18°W (Elev. 5469 ft)
Last Update:
3:08 pm PST Dec 9, 2025
Forecast Valid:
5pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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