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
Click here for hazard details and duration
Red Flag Warning
  • Today

    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.

    High: 83 °F

    Haze then
    Sunny and
    Breezy

  • Tonight

    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.

    Low: 51 °F

    Areas Smoke
    and Breezy
    then Haze

  • Friday

    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.

    High: 79 °F

    Haze then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. West wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74. West wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79.

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
Hartline WA
 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
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database