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Current conditions at
Grand Coulee Dam Airport (K3W7)
Lat: 47.92205°NLon: 119.083°WElev: 1593.0ft.
Clear
66°F
19°C
| Humidity | 34% |
| Wind Speed | N 0 MPH |
| Barometer | 30.27 in (1025.06 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 14 Oct 04:35 PM PDT |
Extended Forecast for
Hartline WA
Tonight
Low: 40 °F
Mostly Clear
Thursday
High: 68 °F
Sunny
Thursday Night
Low: 42 °F
Partly Cloudy
Friday
High: 70 °F
Mostly Sunny
Friday Night
Low: 44 °F
Partly Cloudy
Saturday
High: 66 °F
Patchy
Blowing Dust
and WindySaturday Night
Low: 36 °F
Patchy
Blowing Dust
and Breezy
then Partly
CloudySunday
High: 60 °F
Mostly Sunny
Sunday Night
Low: 40 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 40. Calm wind becoming northeast 5 to 7 mph after midnight.
Thursday
Sunny, with a high near 68. Northeast wind around 9 mph.
Thursday Night
Partly cloudy, with a low around 42. Northeast wind 7 to 10 mph.
Friday
Mostly sunny, with a high near 70. Northeast wind around 9 mph becoming southeast in the afternoon.
Friday Night
Partly cloudy, with a low around 44. South wind around 6 mph becoming calm.
Saturday
Patchy blowing dust after 11am. Mostly sunny, with a high near 66. Windy.
Saturday Night
Patchy blowing dust before 8pm. Mostly clear, with a low around 36. Breezy.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 59.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 59.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Hartline WA
47.68°N 119.11°W (Elev. 1929 ft)
47.68°N 119.11°W (Elev. 1929 ft)
4:07 pm PDT Oct 14, 2026
4pm PDT Oct 14, 2026-6pm PDT Oct 21, 2026
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