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Hazardous Weather Conditions
Current conditions at
Grand Coulee Dam Airport (K3W7)
Lat: 47.92205°NLon: 119.083°WElev: 1593.0ft.haze
63°F
17°C
| Humidity | 59% |
| Wind Speed | N 0 MPH |
| Barometer | 29.92 in (1013.21 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 5.00 mi |
| Last update | 27 Aug 06:55 AM PDT |
Extended Forecast for
Hartline WA
Red Flag Warning August 27, 12:00pm until August 27, 08:00pm
Today
High: 83 °F
Haze then
Sunny and
BreezyTonight
Low: 51 °F
Areas Smoke
and Breezy
then HazeFriday
High: 79 °F
Haze then
SunnyFriday Night

Low: 50 °F
Partly Cloudy
Saturday

High: 74 °F
Mostly Sunny
Saturday Night

Low: 48 °F
Partly Cloudy
Sunday

High: 74 °F
Mostly Sunny
Sunday Night

Low: 48 °F
Mostly Cloudy
Monday

High: 79 °F
Mostly Sunny
Detailed Forecast
Today
Widespread haze between 10am and 11am. Areas of smoke before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 83. Breezy, with a southeast wind 5 to 10 mph becoming southwest 15 to 20 mph in the morning. Winds could gust as high as 34 mph.
Tonight
Widespread haze after 3am. Areas of smoke before 3am. Increasing clouds, with a low around 51. Breezy, with a northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 32 mph.
Friday
Widespread haze before noon. Mostly cloudy, then gradually becoming sunny, with a high near 79. West wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 50. West wind 9 to 11 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 74. West wind 10 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Mostly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 73.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Hartline WA
47.7°N 119.12°W (Elev. 1991 ft)
47.7°N 119.12°W (Elev. 1991 ft)
2:26 am PDT Aug 27, 2026
7am PDT Aug 27, 2026-6pm PDT Sep 2, 2026



