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

Excessive Rainfall Possible for the Gulf Coast and Florida; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across parts of the Gulf Coast into central/northern Florida early this week. Abnormally hot, potentially record-breaking, temperatures will continue for southern California and stretch north toward the Bay Area and Central Valley this week. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Clear

77°F

25°C

Humidity 36%
Wind Speed WNW 3 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 04 Oct 02:55 PM PDT
Extended Forecast for

Hartline WA

  • Tonight

    Tonight: Mostly clear, with a low around 49. Light and variable wind becoming southwest around 5 mph after midnight.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 78. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 5 to 8 mph becoming north after midnight.

    Low: 47 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 76. North wind 5 to 8 mph becoming light and variable in the afternoon.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. Calm wind becoming north 5 to 7 mph after midnight.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Light and variable wind becoming southwest around 5 mph after midnight.
Monday
Mostly sunny, with a high near 78. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 5 to 8 mph becoming north after midnight.
Tuesday
Sunny, with a high near 76. North wind 5 to 8 mph becoming light and variable in the afternoon.
Tuesday Night
Mostly clear, with a low around 46. Calm wind becoming north 5 to 7 mph after midnight.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 73. Breezy.
Friday Night
Partly cloudy, with a low around 46. Breezy.
Saturday
Mostly sunny, with a high near 64. Breezy.
Saturday Night
Partly cloudy, with a low around 42. Breezy.
Sunday
Mostly sunny, with a high near 60. Breezy.
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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:
2:06 pm PDT Oct 4, 2026
Forecast Valid:
3pm PDT Oct 4, 2026-6pm PDT Oct 11, 2026
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation