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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

86°F

30°C

Humidity 17%
Wind Speed WNW 4 MPH
Barometer 29.75 in (1007.45 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 20 Jun 03:55 PM PDT
Extended Forecast for

Hartline WA

Red Flag Warning until June 20, 11:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until June 20, 11:00pm

    NOW until 11:00pm Sat

    Red Flag Warning

  • This Afternoon

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Breezy, with a north wind 14 to 21 mph, with gusts as high as 32 mph.

    Low: 58 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 84. North wind 11 to 17 mph, with gusts as high as 26 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. North wind 11 to 13 mph.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 86. North wind 7 to 13 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 87. West wind around 13 mph.
Tonight
Mostly clear, with a low around 58. Breezy, with a north wind 14 to 21 mph, with gusts as high as 32 mph.
Sunday
Sunny, with a high near 84. North wind 11 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 59. North wind 11 to 13 mph.
Monday
Sunny, with a high near 86. North wind 7 to 13 mph.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 54. Breezy.
Saturday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hartline WA
 47.7°N 119.12°W (Elev. 1991 ft)
Last Update:
2:21 pm PDT Jun 20, 2026
Forecast Valid:
4pm PDT Jun 20, 2026-6pm PDT Jun 27, 2026
 
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Additional Resources

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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