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Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Mostly Cloudy

72°F

22°C

Humidity 37%
Wind Speed SSW 13 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 02 Sep 05:15 PM PDT
Extended Forecast for

Coulee City WA

  • This Afternoon

    This Afternoon: Showers likely.  Mostly cloudy, with a high near 73. Breezy, with a south wind around 24 mph, with gusts as high as 38 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Showers likely, mainly before 11pm.  Cloudy, with a low around 49. Windy, with a south wind 15 to 25 mph, with gusts as high as 34 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Showers
    Likely and
    Windy then
    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 69. South wind 10 to 13 mph.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48. South wind 5 to 9 mph becoming light and variable.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 11am.  Partly sunny, with a high near 69. North wind 6 to 8 mph becoming south in the afternoon.

    High: 69 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 11pm.  Mostly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers.  Partly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75. Breezy.

    High: 75 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Showers likely. Mostly cloudy, with a high near 73. Breezy, with a south wind around 24 mph, with gusts as high as 38 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely, mainly before 11pm. Cloudy, with a low around 49. Windy, with a south wind 15 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 69. South wind 10 to 13 mph.
Thursday Night
Mostly cloudy, with a low around 48. South wind 5 to 9 mph becoming light and variable.
Friday
A 30 percent chance of showers after 11am. Partly sunny, with a high near 69. North wind 6 to 8 mph becoming south in the afternoon.
Friday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 51.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 75. Breezy.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 55.
Labor Day
A 30 percent chance of showers. Partly sunny, with a high near 75.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Coulee City WA
 47.63°N 119.32°W (Elev. 1568 ft)
4:11 pm PDT Sep 2, 2026
5pm PDT Sep 2, 2026-6pm PDT Sep 9, 2026
 
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Additional Resources

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Hourly Weather Forecast

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