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

Grand Coulee Dam Airport (K3W7)

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

Clear

52°F

11°C

Humidity 37%
Wind Speed NNW 5 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 08 Apr 10:55 AM PDT
Extended Forecast for

Coulee City WA

  • Today

    Today: Sunny, with a high near 62. East wind around 6 mph becoming west in the afternoon.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Southwest wind 5 to 8 mph becoming north after midnight.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. North wind 6 to 11 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. North wind 6 to 9 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 69. North wind 6 to 9 mph.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.

    High: 63 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 56. Chance of precipitation is 40%.

    High: 56 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 62. East wind around 6 mph becoming west in the afternoon.
Tonight
Mostly clear, with a low around 43. Southwest wind 5 to 8 mph becoming north after midnight.
Thursday
Sunny, with a high near 65. North wind 6 to 11 mph.
Thursday Night
Mostly clear, with a low around 45. North wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 69. North wind 6 to 9 mph.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 56. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coulee City WA
 47.61°N 119.28°W (Elev. 1624 ft)
Last Update:
10:56 am PDT Apr 8, 2026
Forecast Valid:
11am PDT Apr 8, 2026-6pm PDT Apr 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