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

Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

52°F

11°C

Humidity 34%
Wind Speed SSW 4 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 28 Feb 02:55 PM PST
Extended Forecast for

Grand Coulee WA

  • Tonight

    Tonight: Partly cloudy, with a low around 33. Light north wind.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 53. Light north wind.

    High: 53 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Light northeast wind.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 56. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. South wind around 5 mph becoming light and variable.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Partly sunny, with a high near 54.

    High: 54 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 33. Light north wind.
Sunday
Sunny, with a high near 53. Light north wind.
Sunday Night
Mostly clear, with a low around 35. Light northeast wind.
Monday
Mostly sunny, with a high near 56. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 37. South wind around 5 mph becoming light and variable.
Tuesday
Mostly cloudy, with a high near 54.
Tuesday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 41.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 54.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 54.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39.
Saturday
A 30 percent chance of rain. Mostly cloudy, with a high near 56.
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:
1:26 pm PST Feb 28, 2026
Forecast Valid:
3pm PST Feb 28, 2026-6pm PST Mar 7, 2026
 
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