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

Tracking Winter Storm and Severe Weather Impacts Through This Weekend

Heavy mountain snow will continue into Thursday afternoon across the Cascades. Two fast moving storms will track from the southern Rockies to the Great Lakes Thursday and then Friday into Sunday with areas of gusty winds, and heavy snow. In the Southeast U.S., severe thunderstorms and heavy to excessive rainfall are forecast on Friday. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

Lat: 47.92205°NLon: 119.083°WElev: 1593.0ft.

Overcast

34°F

1°C

Humidity 100%
Wind Speed E 4 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 07 Jan 08:55 PM PST
Extended Forecast for

Grand Coulee WA

  • Tonight

    Tonight: A 20 percent chance of snow before 10pm. Partly cloudy, with a low around 30. Southwest wind around 6 mph.

    Low: 30 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 40. Southwest wind 6 to 10 mph.

    High: 40 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 30. South wind 5 to 7 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 41. South wind around 6 mph.

    High: 41 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31. East wind around 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
A 20 percent chance of snow before 10pm. Partly cloudy, with a low around 30. Southwest wind around 6 mph.
Thursday
Sunny, with a high near 40. Southwest wind 6 to 10 mph.
Thursday Night
Increasing clouds, with a low around 30. South wind 5 to 7 mph.
Friday
Mostly cloudy, with a high near 41. South wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 31. East wind around 5 mph.
Saturday
Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Mostly cloudy, with a high near 41.
Sunday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 33.
Monday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 43.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Mostly cloudy, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
Last Update:
9:02 pm PST Jan 7, 2026
Forecast Valid:
9pm PST Jan 7, 2026-6pm PST Jan 14, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation