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

Storm System to Move Across the Ohio Valley to the Mid-Atlantic and Northeast

Isolated severe thunderstorms will be possible on Veterans Day across parts of the lower Ohio and western Tennessee Valleys. A developing storm will bring rain and gusty winds to the Mid-Atlantic and Northeast on Thursday, with the first accumulating snow likely in the higher elevations of the central Appalachians and interior Northeast. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

55°F

13°C

Humidity 93%
Wind Speed NE 4 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Nov 02:55 PM PST
Extended Forecast for

3 Miles WNW Coulee Dam WA

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 38. Southeast wind around 5 mph becoming light and variable in the evening.

    Low: 38 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 54. Southeast wind 5 to 7 mph.

    High: 54 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. Northeast wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of rain after 4pm. Partly sunny, with a high near 58. East wind 8 to 10 mph.

    High: 58 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 44. East wind 7 to 9 mph becoming southeast after midnight.

    Low: 44 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain likely, mainly after 10am. Cloudy, with a high near 49. Chance of precipitation is 60%.

    High: 49 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 41. Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 38. Southeast wind around 5 mph becoming light and variable in the evening.
Thursday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 54. Southeast wind 5 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 41. Northeast wind around 6 mph.
Friday
A 30 percent chance of rain after 4pm. Partly sunny, with a high near 58. East wind 8 to 10 mph.
Friday Night
A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 44. East wind 7 to 9 mph becoming southeast after midnight.
Saturday
Partly sunny, with a high near 52.
Saturday Night
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 40.
Sunday
Rain likely, mainly after 10am. Cloudy, with a high near 49. Chance of precipitation is 60%.
Sunday Night
Rain likely. Cloudy, with a low around 41. Chance of precipitation is 70%.
Monday
A 50 percent chance of rain, mainly before 4pm. Mostly cloudy, with a high near 48.
Monday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 38.
Tuesday
Mostly cloudy, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A slight chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Coulee Dam WA
 47.98°N 119.03°W (Elev. 2441 ft)
Last Update:
2:16 pm PST Nov 11, 2026
Forecast Valid:
3pm PST Nov 11, 2026-6pm PST Nov 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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