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

Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

55°F

13°C

Humidity 58%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 05 Jul 04:35 AM PDT
Extended Forecast for

Coulee City WA

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 86. North wind 8 to 13 mph becoming light in the afternoon.

    High: 86 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. North wind 5 to 10 mph.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92. North wind 5 to 10 mph becoming light and variable.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. South wind 5 to 7 mph becoming northeast after midnight.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Northeast wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 26 mph.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. Breezy.

    High: 87 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Breezy.

    Low: 58 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 86. North wind 8 to 13 mph becoming light in the afternoon.
Tonight
Mostly clear, with a low around 60. North wind 5 to 10 mph.
Monday
Sunny, with a high near 92. North wind 5 to 10 mph becoming light and variable.
Monday Night
Mostly clear, with a low around 64. South wind 5 to 7 mph becoming northeast after midnight.
Tuesday
Sunny, with a high near 95. Northeast wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 87. Breezy.
Wednesday Night
Mostly clear, with a low around 58. Breezy.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 60.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coulee City WA
 47.63°N 119.29°W (Elev. 1568 ft)
Last Update:
4:11 am PDT Jul 5, 2026
Forecast Valid:
4am PDT Jul 5, 2026-6pm PDT Jul 11, 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