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

10 year Anniversary of Historic Windstorm: Nov 17, 2015

A historic and damaging wind storm took place on Nov 17, 2015. The Inland Northwest felt the impacts far and wide of the strong and damaging winds. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

37°F

3°C

Humidity 74%
Wind Speed ESE 4 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 29 Nov 12:35 PM PST
Extended Forecast for

Grand Coulee WA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 41. North wind around 6 mph.

    High: 41 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. North wind around 6 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 39. Light and variable wind.

    High: 39 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 38. Southeast wind 3 to 5 mph.

    High: 38 °F

    Mostly Cloudy

  • Monday Night

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

    Low: 31 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 41. North wind around 6 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 39. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 29. Calm wind.
Monday
Mostly cloudy, with a high near 38. Southeast wind 3 to 5 mph.
Monday Night
A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 31.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Mostly cloudy, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
A slight chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
Last Update:
9:12 am PST Nov 29, 2025
Forecast Valid:
1pm PST Nov 29, 2025-6pm PST Dec 5, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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