Record Heat Remains in Place This Week; Severe Thunderstorms Possible Thursday

Record warmth will persist across portions of California, the Southwest U.S., the central Great Basin and return back to areas of the central/southern Plains and mid-lower Mississippi Valley this week. Over 200 new record high temperatures are forecast. Severe thunderstorms are being outlooked on Thursday over the Midwest. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

30°F

-1°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 23 Mar 05:15 AM PDT
Extended Forecast for

Grand Coulee WA

  • Today

    Today: Mostly sunny, with a high near 60. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: A 10 percent chance of rain after 5am.  Mostly cloudy, with a low around 45. South wind around 6 mph.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: Rain, mainly after 11am.  High near 54. South wind 6 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Rain

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain, mainly before 11pm.  Cloudy, then gradually becoming partly cloudy, with a low around 40. South wind 11 to 13 mph, with gusts as high as 25 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance Rain
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 54. Southwest wind 10 to 16 mph, with gusts as high as 29 mph.

    High: 54 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 60. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 45. South wind around 6 mph.
Tuesday
Rain, mainly after 11am. High near 54. South wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
A 50 percent chance of rain, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 40. South wind 11 to 13 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 54. Southwest wind 10 to 16 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
4:57 am PDT Mar 23, 2026
5am PDT Mar 23, 2026-6pm PDT Mar 29, 2026
 
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Additional Resources

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