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

SPRING CANYON (SPCW1)

Lat: 47.93472°NLon: 118.93472°WElev: 1340.0ft.

NA

30°F

-1°C

Humidity 100%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 01 Jan 01:37 PM PST
Extended Forecast for

Grand Coulee WA

Winter Weather Advisory until January 2, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 2, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • New Year's Day

    High: 31 °F

    Chance Snow

  • Tonight

    Tonight: A chance of snow before 1am, then a chance of snow and freezing rain between 1am and 3am, then a chance of freezing rain after 3am. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow
    then Chance
    Wintry Mix

  • Friday

    Friday: A chance of rain, snow, and freezing rain before 10am, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 38. Light southeast wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 38 °F

    Chance Wintry
    Mix then
    Mostly Cloudy

  • Friday Night

    Friday Night: Rain, mainly after 4am. Low around 37. Light northeast wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance Rain
    then Rain

  • Saturday

    Saturday: Rain. High near 39. Southeast wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 4am. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain

Detailed Forecast

New Year's Day
A 40 percent chance of snow. Cloudy, with a high near 31. Calm wind. Total daytime snow accumulation of less than a half inch possible.
Tonight
A chance of snow before 1am, then a chance of snow and freezing rain between 1am and 3am, then a chance of freezing rain after 3am. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday
A chance of rain, snow, and freezing rain before 10am, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 38. Light southeast wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
Rain, mainly after 4am. Low around 37. Light northeast wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 39. Southeast wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Sunday
A 40 percent chance of rain, mainly before 10am. Mostly cloudy, with a high near 47.
Sunday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 37.
Monday
A slight chance of rain before 10am, then a slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Partly sunny, with a high near 45. Chance of precipitation is 10%.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
A slight chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 20%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 42. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.95°N 118.99°W (Elev. 1627 ft)
Last Update:
1:12 pm PST Jan 1, 2026
Forecast Valid:
1pm PST Jan 1, 2026-6pm PST Jan 7, 2026
 
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