Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

64°F

18°C

Humidity 31%
Wind Speed S 3 MPH
Barometer 29.67 in (1004.74 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 10 Apr 06:35 PM PDT
Extended Forecast for

Grand Coulee WA

  • Tonight

    Tonight: A 30 percent chance of showers after 11pm.  Mostly cloudy, with a low around 52. North wind around 6 mph becoming light and variable  after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers.  Mostly cloudy, with a high near 65. Light and variable wind becoming southwest 5 to 9 mph in the morning.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 11pm.  Partly cloudy, with a low around 45. Southwest wind 5 to 9 mph becoming light south  after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 11am.  Mostly sunny, with a high near 68. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 68 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 11pm.  Partly cloudy, with a low around 46. West wind 6 to 8 mph.

    Low: 46 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain.  Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Tonight
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 52. North wind around 6 mph becoming light and variable after midnight. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 65. Light and variable wind becoming southwest 5 to 9 mph in the morning. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A 30 percent chance of showers before 11pm. Partly cloudy, with a low around 45. Southwest wind 5 to 9 mph becoming light south after midnight. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 20 percent chance of showers after 11am. Mostly sunny, with a high near 68. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 46. West wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 40.
Wednesday
A 30 percent chance of rain, mainly before 11am. Mostly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
3:36 pm PDT Apr 10, 2026
6pm PDT Apr 10, 2026-6pm PDT Apr 17, 2026
 
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Additional Resources

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