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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

10°F

-12°C

Humidity 88%
Wind Speed NNW 2 MPH
Barometer NA
Dewpoint 7°F (-14°C)
Visibility NA
Last update 01 Jan 05:06 AM PST
Extended Forecast for

5 Miles ESE Winthrop WA

Air Stagnation Advisory until January 1, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory until January 1, 12:00pm

    NOW until 12:00pm Thu

    Air Stagnation Advisory

  • Overnight

    Low: 18 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 20 percent chance of snow after 1pm. Cloudy, with a high near 30. Calm wind.

    High: 30 °F

    Cloudy then
    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Cloudy, with a low around 25. Calm wind. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Friday

    Friday: A 40 percent chance of snow. Mostly cloudy, with a high near 30. Calm wind. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 4am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Snow Likely

  • Saturday

    Saturday: Snow likely before 10am, then rain. High near 33. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Rain/Snow
    then Rain

  • Saturday Night

    Saturday Night: Rain likely. Mostly cloudy, with a low around 29. Chance of precipitation is 70%.

    Low: 29 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely before 10am, then a chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.

    High: 35 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 18. Calm wind.
New Year's Day
A 20 percent chance of snow after 1pm. Cloudy, with a high near 30. Calm wind.
Thursday Night
A 40 percent chance of snow. Cloudy, with a low around 25. Calm wind. New snow accumulation of less than a half inch possible.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 30. Calm wind. New snow accumulation of less than a half inch possible.
Friday Night
Snow likely, mainly after 4am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely before 10am, then rain. High near 33. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday Night
Rain likely. Mostly cloudy, with a low around 29. Chance of precipitation is 70%.
Sunday
Rain likely before 10am, then a chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Monday
A 30 percent chance of snow, mainly between 10am and 4pm. Partly sunny, with a high near 34.
Monday Night
A 20 percent chance of snow. Partly cloudy, with a low around 22.
Tuesday
A 30 percent chance of snow. Mostly cloudy, with a high near 33.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 23.
Wednesday
A 50 percent chance of snow. Partly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Winthrop WA
 48.45°N 120.08°W (Elev. 3304 ft)
Last Update:
2:53 am PST Jan 1, 2026
Forecast Valid:
5am PST Jan 1, 2026-6pm PST Jan 7, 2026
 
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