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

Walla Walla Regional Airport (KALW)

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

Clear

52°F

11°C

Humidity 46%
Wind Speed SSW 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 09 Apr 09:53 AM PDT
Extended Forecast for

Dayton WA

  • Today

    Today: Sunny, with a high near 68. North wind 3 to 8 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. Northeast wind 5 to 8 mph becoming light and variable after midnight.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of rain after 11am. Partly sunny, with a high near 70. Calm wind becoming west around 6 mph in the afternoon.

    High: 70 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 48. Southwest wind 5 to 7 mph becoming south after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain

  • Saturday

    Saturday: Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 65. South wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Saturday Night

    Saturday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Rain Likely
    then Chance
    Rain

  • Sunday

    Sunday: A chance of rain, then showers and possibly a thunderstorm after 11am. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Showers

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely

  • Monday

    Monday: A 50 percent chance of rain. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 68. North wind 3 to 8 mph.
Tonight
Mostly clear, with a low around 45. Northeast wind 5 to 8 mph becoming light and variable after midnight.
Friday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 70. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 48. Southwest wind 5 to 7 mph becoming south after midnight. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 65. South wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Sunday
A chance of rain, then showers and possibly a thunderstorm after 11am. High near 56. Chance of precipitation is 80%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Monday
A 50 percent chance of rain. Mostly cloudy, with a high near 55.
Monday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 39.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Mostly cloudy, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dayton WA
 46.32°N 117.98°W (Elev. 1768 ft)
Last Update:
4:01 am PDT Apr 9, 2026
Forecast Valid:
10am PDT Apr 9, 2026-6pm PDT Apr 15, 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