Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

DEER MOUNTAIN (DMFW1)

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

NA

41°F

5°C

Humidity 100%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 09 Dec 01:56 AM PST
Extended Forecast for

Ione WA

Wind Advisory December 9, 02:48am until December 9, 07:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 9, 02:48am until December 9, 07:00am

    NOW until 7:00am Tue

    Wind Advisory

  • Overnight

    Low: 36 °F

    Chance Rain

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 44. Southwest wind 5 to 10 mph becoming light and variable  in the afternoon.

    High: 44 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Snow, possibly mixed with rain.  Snow level 3000 feet rising to 3700 feet after midnight. Low around 34. Light south wind.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain.  High near 43. Light southwest wind.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 40. Southwest wind 3 to 5 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Thursday

    Thursday: Rain likely, mainly before 10am.  Snow level 5200 feet lowering to 4300 feet in the afternoon . Mostly cloudy, with a high near 44. Chance of precipitation is 70%.

    High: 44 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 1am, then a chance of rain between 1am and 4am, then a chance of rain and snow after 4am.  Snow level 3300 feet rising to 4100 feet after midnight. Cloudy, with a low around 34. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Rain/Snow

  • Friday

    Friday: A chance of rain and snow before 7am, then a chance of rain.  Snow level 4300 feet rising to 5000 feet in the afternoon. Mostly cloudy, with a high near 40. Chance of precipitation is 50%.

    High: 40 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Overnight
A 40 percent chance of rain. Cloudy, with a low around 36. Southwest wind around 11 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Mostly cloudy, with a high near 44. Southwest wind 5 to 10 mph becoming light and variable in the afternoon.
Tuesday Night
Snow, possibly mixed with rain. Snow level 3000 feet rising to 3700 feet after midnight. Low around 34. Light south wind. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday
Rain. High near 43. Light southwest wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 40. Southwest wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely, mainly before 10am. Snow level 5200 feet lowering to 4300 feet in the afternoon . Mostly cloudy, with a high near 44. Chance of precipitation is 70%.
Thursday Night
A chance of rain and snow before 1am, then a chance of rain between 1am and 4am, then a chance of rain and snow after 4am. Snow level 3300 feet rising to 4100 feet after midnight. Cloudy, with a low around 34. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday
A chance of rain and snow before 7am, then a chance of rain. Snow level 4300 feet rising to 5000 feet in the afternoon. Mostly cloudy, with a high near 40. Chance of precipitation is 50%.
Friday Night
A chance of rain before 4am, then a slight chance of rain and snow. Snow level 5000 feet lowering to 4500 feet after midnight . Cloudy, with a low around 33. Chance of precipitation is 40%.
Saturday
A chance of rain and snow, mainly after 10am. Snow level 4000 feet. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Saturday Night
Rain and snow likely. Snow level 4400 feet. Cloudy, with a low around 35. Chance of precipitation is 60%.
Sunday
Rain and snow likely. Snow level 4100 feet. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Sunday Night
A 40 percent chance of rain. Snow level 4200 feet. Cloudy, with a low around 36.
Monday
Rain likely. Snow level 4600 feet. Cloudy, with a high near 43. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Ione WA
 48.76°N 117.39°W (Elev. 2054 ft)
1:26 am PST Dec 9, 2025
2am PST Dec 9, 2025-6pm PST Dec 15, 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