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

Hazardous Weather Conditions

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

79°F

26°C

Humidity 41%
Wind Speed NNE 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 19 Aug 11:05 AM PDT
Extended Forecast for

2 Miles WNW Coulee City WA

  • Today

    Today: Widespread haze. Increasing clouds, with a high near 90. South wind 6 to 9 mph.

    High: 90 °F

    Haze

  • Tonight

    Tonight: Widespread haze after 1am. Partly cloudy, with a low around 63. South wind 5 to 8 mph becoming light and variable.

    Low: 63 °F

    Partly Cloudy
    then Haze

  • Thursday

    Thursday: Sunny, with a high near 95. North wind 5 to 7 mph becoming south in the afternoon.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. South wind 5 to 7 mph becoming north after midnight.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny and hot, with a high near 97. North wind 6 to 9 mph becoming southeast in the afternoon.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: A 20 percent chance of showers after 11pm. Cloudy, with a low around 70.

    Low: 70 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 92.

    High: 92 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 58. Breezy.

    Low: 58 °F

    Slight Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Widespread haze. Increasing clouds, with a high near 90. South wind 6 to 9 mph.
Tonight
Widespread haze after 1am. Partly cloudy, with a low around 63. South wind 5 to 8 mph becoming light and variable.
Thursday
Sunny, with a high near 95. North wind 5 to 7 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 65. South wind 5 to 7 mph becoming north after midnight.
Friday
Partly sunny and hot, with a high near 97. North wind 6 to 9 mph becoming southeast in the afternoon.
Friday Night
A 20 percent chance of showers after 11pm. Cloudy, with a low around 70.
Saturday
A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 92.
Saturday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 58. Breezy.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Coulee City WA
 47.63°N 119.32°W (Elev. 1568 ft)
Last Update:
10:21 am PDT Aug 19, 2026
Forecast Valid:
11am PDT Aug 19, 2026-6pm PDT Aug 25, 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