Current conditions at
Grand Coulee Dam Airport (K3W7)
Lat: 47.92205°NLon: 119.083°WElev: 1593.0ft.
Partly Cloudy
57°F
14°C
| Humidity | 71% |
| Wind Speed | N 0 MPH |
| Barometer | 29.95 in (1014.22 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 20 Mar 11:55 AM PDT |
Extended Forecast for
Coulee City WA
This Afternoon
High: 65 °F
Slight Chance
Rain and
BreezyTonight
Low: 43 °F
Mostly Cloudy
Saturday
High: 56 °F
Becoming
SunnySaturday Night
Low: 32 °F
Mostly Clear
Sunday
High: 54 °F
Mostly Sunny
Sunday Night
Low: 35 °F
Mostly Cloudy
Monday
High: 55 °F
Mostly Cloudy
Monday Night
Low: 40 °F
Mostly Cloudy
Tuesday
High: 56 °F
Chance Rain
Detailed Forecast
This Afternoon
A 20 percent chance of rain. Cloudy, with a high near 65. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 43. West wind 11 to 16 mph.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 56. West wind 14 to 16 mph.
Saturday Night
Mostly clear, with a low around 32. West wind 9 to 17 mph.
Sunday
Mostly sunny, with a high near 54. Southwest wind 6 to 11 mph.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Mostly cloudy, with a high near 55.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 56.
Tuesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 54. Breezy.
Wednesday Night
Mostly clear, with a low around 32. Breezy.
Thursday
Sunny, with a high near 53.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Coulee City WA
47.63°N 119.29°W (Elev. 1568 ft)
47.63°N 119.29°W (Elev. 1568 ft)
10:11 am PDT Mar 20, 2026
12pm PDT Mar 20, 2026-6pm PDT Mar 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
