Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Overcast

48°F

9°C

Humidity 46%
Wind Speed WNW 16 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 02 Apr 09:55 PM PDT
Extended Forecast for

Grand Coulee WA

  • Tonight

    Tonight: Increasing clouds, with a low around 34. West wind 5 to 9 mph becoming light southwest  after midnight.

    Low: 34 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 57. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. South wind 5 to 8 mph becoming calm  in the evening.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42. South wind around 5 mph becoming calm  in the evening.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 34. West wind 5 to 9 mph becoming light southwest after midnight.
Friday
Mostly sunny, with a high near 57. Calm wind becoming southwest 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 37. South wind 5 to 8 mph becoming calm in the evening.
Saturday
Sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 42. South wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Mostly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
10:12 pm PDT Apr 2, 2026
10pm PDT Apr 2, 2026-6pm PDT Apr 9, 2026
 
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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