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

Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Hazardous Weather Conditions

Current conditions at

MANSON (MASW)

Lat: 47.91694°NLon: 120.12444°WElev: 1972.0ft.

NA

44°F

7°C

Humidity 64%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 11 Dec 09:00 AM PST
Extended Forecast for

15 Miles WNW Chelan WA

Flood Warning until December 12, 09:00am
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning until December 12, 09:00am

    NOW until 9:00am Fri

    Flood Warning

  • Today

    High: 34 °F

    Chance Snow
    and Windy
    then Slight
    Chance Snow

  • Tonight

    Tonight: A slight chance of snow before 10pm, then a chance of rain and snow. Mostly cloudy, with a temperature rising to around 34 by 5am. West wind 8 to 10 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F⇑

    Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of rain and snow before 10am, then a chance of snow. Partly sunny, with a high near 35. West wind around 9 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 35 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 31. West wind 10 to 13 mph.

    Low: 31 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 35. West wind 5 to 9 mph becoming light southwest in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A 40 percent chance of snow. Partly sunny, with a high near 34. Little or no snow accumulation expected.

    High: 34 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.

    Low: 30 °F

    Snow Likely

Detailed Forecast

Today
A chance of snow before 10am, then a slight chance of snow after 4pm. Mostly sunny, with a high near 34. Windy, with a west wind 21 to 26 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 40%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A slight chance of snow before 10pm, then a chance of rain and snow. Mostly cloudy, with a temperature rising to around 34 by 5am. West wind 8 to 10 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
A slight chance of rain and snow before 10am, then a chance of snow. Partly sunny, with a high near 35. West wind around 9 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 31. West wind 10 to 13 mph.
Saturday
Mostly sunny, with a high near 35. West wind 5 to 9 mph becoming light southwest in the afternoon.
Saturday Night
A 20 percent chance of snow after 10pm. Mostly cloudy, with a low around 31.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 34. Little or no snow accumulation expected.
Sunday Night
Snow likely, mainly after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Monday
Snow likely before 10am, then rain and snow. High near 34. Chance of precipitation is 90%.
Monday Night
Snow, mainly before 4am. Low around 29. Breezy. Chance of precipitation is 90%.
Tuesday
Snow. The snow could be heavy at times. High near 31. Breezy. Chance of precipitation is 80%.
Tuesday Night
Snow. The snow could be heavy at times. Low around 25. Breezy. Chance of precipitation is 80%.
Wednesday
Snow. The snow could be heavy at times. High near 26. Chance of precipitation is 80%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles WNW Chelan WA
 47.91°N 120.35°W (Elev. 6234 ft)
Last Update:
8:52 am PST Dec 11, 2025
Forecast Valid:
9am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation