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

Grand Coulee Dam Airport (K3W7)

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

Overcast

46°F

8°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Oct 04:55 AM PDT
Extended Forecast for

9 Miles N Coulee City WA

  • Overnight

    Overnight: A 40 percent chance of rain. Cloudy, with a low around 43. Northwest wind around 9 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance Rain

  • Sunday

    Sunday: Rain, mainly after 8am. High near 49. Northwest wind around 10 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Rain

  • Sunday Night

    Sunday Night: Rain before 2am, then rain, possibly mixed with snow. Low around 36. Breezy, with a northeast wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain then
    Rain/Snow and
    Breezy

  • Columbus Day

    Columbus Day: Snow likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a northeast wind 21 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 50 °F

    Breezy. Snow
    Likely then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. Breezy, with a north wind 18 to 23 mph, with gusts as high as 37 mph.

    Low: 34 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Overnight
A 40 percent chance of rain. Cloudy, with a low around 43. Northwest wind around 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain, mainly after 8am. High near 49. Northwest wind around 10 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain before 2am, then rain, possibly mixed with snow. Low around 36. Breezy, with a northeast wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Columbus Day
Snow likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a northeast wind 21 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday Night
Partly cloudy, with a low around 34. Breezy, with a north wind 18 to 23 mph, with gusts as high as 37 mph.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 35.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 36.
Saturday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles N Coulee City WA
 47.74°N 119.32°W (Elev. 2398 ft)
Last Update:
4:17 am PDT Oct 12, 2025
Forecast Valid:
5am PDT Oct 12, 2025-6pm PDT Oct 18, 2025
 
Forecast Discussion
 
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Additional Resources

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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