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

Walla Walla Regional Airport (KALW)

Lat: 46.09462°NLon: 118.2858°WElev: 1168.0ft.

Clear

64°F

18°C

Humidity 52%
Wind Speed SE 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 03 Oct 09:15 PM PDT
Extended Forecast for

Dayton WA

  • Tonight

    Tonight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Light west wind.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. Southwest wind around 6 mph becoming light and variable in the evening.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Calm wind.
Sunday
Sunny, with a high near 82. Light west wind.
Sunday Night
Partly cloudy, with a low around 54. Calm wind.
Monday
Sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 53. Southwest wind around 6 mph becoming light and variable in the evening.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 78.
Friday Night
A chance of showers. Partly cloudy, with a low around 47.
Saturday
A slight chance of showers. Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dayton WA
 46.32°N 117.98°W (Elev. 1768 ft)
Last Update:
3:00 pm PDT Oct 3, 2026
Forecast Valid:
9pm 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