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

Heavy to Excessive Rainfall for the Southwest;

Tropical moisture from Priscilla will bring a multi-day thunderstorm, widespread heavy rainfall and flash flooding event across the Southwest/Four Corners region. Flash flooding will be a concern in burn scars, slot canyons, and urban areas. Widespread storms are expected in central/South Florida with some isolated flash flooding possible. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Partly Cloudy

59°F

15°C

Humidity 47%
Wind Speed N 0 MPH
Barometer 29.76 in (1007.79 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 08 Oct 08:15 PM PDT
Extended Forecast for

Coulee City WA

  • Tonight

    Tonight: Partly cloudy, with a low around 51. North wind 6 to 15 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. Northeast wind 8 to 15 mph becoming south in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 52. East wind 6 to 13 mph becoming north in the evening.

    Low: 52 °F

    Increasing
    Clouds

  • Friday

    Friday: A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 70. North wind 8 to 14 mph becoming south in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 43. Southwest wind 9 to 16 mph, with gusts as high as 24 mph.

    Low: 43 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after 11am. Partly sunny, with a high near 61.

    High: 61 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 41. Breezy.

    Low: 41 °F

    Chance
    Showers and
    Breezy

  • Sunday

    Sunday: A 40 percent chance of showers. Partly sunny, with a high near 55.

    High: 55 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. North wind 6 to 15 mph.
Thursday
Mostly sunny, with a high near 76. Northeast wind 8 to 15 mph becoming south in the afternoon.
Thursday Night
Increasing clouds, with a low around 52. East wind 6 to 13 mph becoming north in the evening.
Friday
A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 70. North wind 8 to 14 mph becoming south in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 43. Southwest wind 9 to 16 mph, with gusts as high as 24 mph.
Saturday
A 30 percent chance of showers, mainly after 11am. Partly sunny, with a high near 61.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41. Breezy.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 55.
Sunday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Columbus Day
A 40 percent chance of showers. Partly sunny, with a high near 53. Breezy.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coulee City WA
 47.63°N 119.29°W (Elev. 1568 ft)
Last Update:
7:01 pm PDT Oct 8, 2025
Forecast Valid:
8pm PDT Oct 8, 2025-6pm PDT Oct 15, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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