Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

39°F

4°C

Humidity 75%
Wind Speed NNE 4 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 01 Mar 09:55 AM PST
Extended Forecast for

Grand Coulee WA

  • Today

    Today: Sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. Light and variable wind.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 37. South wind around 5 mph becoming light and variable.

    Low: 37 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. East wind 6 to 10 mph becoming south in the afternoon.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 10pm.  Cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Partly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 53. Light and variable wind.
Tonight
Mostly clear, with a low around 35. Light and variable wind.
Monday
Sunny, with a high near 55. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 37. South wind around 5 mph becoming light and variable.
Tuesday
Mostly cloudy, with a high near 54. East wind 6 to 10 mph becoming south in the afternoon.
Tuesday Night
A 20 percent chance of rain after 10pm. Cloudy, with a low around 43.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
Partly sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 54.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
9:21 am PST Mar 1, 2026
10am PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database