Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

46°F

8°C

Humidity 70%
Wind Speed WSW 4 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 03 Apr 11:15 AM PDT
Extended Forecast for

Grand Coulee WA

  • Today

    Today: Mostly sunny, with a high near 57. Southwest wind 6 to 8 mph.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. South wind around 6 mph becoming calm  in the evening.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 64. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70. Northeast wind around 5 mph becoming light and variable.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48.

    Low: 48 °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 45.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 57. Southwest wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 38. South wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 64. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 44. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 70. Northeast wind around 5 mph becoming light and variable.
Sunday Night
Mostly cloudy, with a low around 48.
Monday
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Mostly sunny, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
10:51 am PDT Apr 3, 2026
11am PDT Apr 3, 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