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

Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Saturday

Severe thunderstorms capable of damaging winds will be possible from the Ozark Plateau east into the Tennessee Valley Saturday. Rounds of heavy thunderstorms ahead of a slow moving front will continue locally heavy rainfall and scattered flash flooding potential from the Ozarks to the Ohio and Tennessee Valleys Saturday. Extreme heat will continue for the Intermountain West and Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

84°F

29°C

Humidity 30%
Wind Speed SW 13 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 11 Jul 01:15 PM PDT
Extended Forecast for

Coulee City WA

Red Flag Warning until July 11, 11:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until July 11, 11:00pm

    NOW until 11:00pm Sat

    Red Flag Warning

  • This Afternoon

    High: 83 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 64. Southwest wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 24 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradual clearing during the afternoon, with a high near 80. West wind 8 to 17 mph becoming south in the afternoon.

    High: 80 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. South wind 5 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. Light and variable wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 83. Breezy, with a southwest wind 16 to 18 mph, with gusts as high as 32 mph.
Tonight
Increasing clouds, with a low around 64. Southwest wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 24 mph.
Sunday
Cloudy, then gradual clearing during the afternoon, with a high near 80. West wind 8 to 17 mph becoming south in the afternoon.
Sunday Night
Mostly clear, with a low around 60. South wind 5 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 86. Light and variable wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Sunny, with a high near 89.
Wednesday Night
A 40 percent chance of showers after 11pm. Partly cloudy, with a low around 65.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 88.
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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:
11:31 am PDT Jul 11, 2026
Forecast Valid:
1pm PDT Jul 11, 2026-6pm PDT Jul 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation