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

Excessive Rainfall Possible This Weekend; 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 the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

80°F

27°C

Humidity 33%
Wind Speed NNW 10 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 03 Oct 02:53 PM PDT
Extended Forecast for

Wallula WA

  • Tonight

    Tonight: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74. Calm wind.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58. Calm wind becoming south around 5 mph after midnight.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 77. West wind 5 to 7 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Light south wind.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Calm wind.
Sunday
Sunny, with a high near 74. Calm wind.
Sunday Night
Partly cloudy, with a low around 58. Calm wind becoming south around 5 mph after midnight.
Monday
Sunny, with a high near 77. West wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 56. Light south wind.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 73.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wallula WA
 46.07°N 118.91°W (Elev. 338 ft)
Last Update:
3:00 pm PDT Oct 3, 2026
Forecast Valid:
3pm PDT Oct 3, 2026-6pm PDT Oct 10, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation