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

Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Rain

59°F

15°C

Humidity 100%
Wind Speed NE 6 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 59°F (15°C)
Visibility 8.00 mi
Last update 07 Sep 04:55 PM PDT
Extended Forecast for

9 Miles NW Coulee City WA

  • Labor Day

    Labor Day: A 20 percent chance of showers. Partly sunny, with a steady temperature around 68. West wind around 8 mph.

    High: 68 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers. Mostly cloudy, with a low around 48. West wind 5 to 7 mph becoming calm after midnight.

    Low: 48 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 74. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. South wind 5 to 9 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Light and variable wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47. Breezy.

    Low: 47 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

Labor Day
A 20 percent chance of showers. Partly sunny, with a steady temperature around 68. West wind around 8 mph.
Tonight
A 20 percent chance of showers. Mostly cloudy, with a low around 48. West wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 74. Calm wind becoming south 5 to 9 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 50. South wind 5 to 9 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 79. Light and variable wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 47. Breezy.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 64.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 47.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NW Coulee City WA
 47.7°N 119.43°W (Elev. 2201 ft)
Last Update:
3:36 pm PDT Sep 7, 2026
Forecast Valid:
5pm PDT Sep 7, 2026-6pm PDT Sep 14, 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