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City of Dayton, WashingtonDayton, WA 7-Day Night Weather Forecast
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Dayton, WA Weather Forecast
Dayton, WA Weather Forecast Date: 302 PM PDT Mon Oct 05 2026
The area/counties/county of: Foothills Of The Blue Mountains Of Washington, including the cities of: Dayton, Waitsburg, and Walla Walla.or toggle through each period.
Tonight... Mostly clear. Lows in the upper 40s to mid 50s. Southwest wind 5 to 10 mph in the evening, becoming light.
Tuesday... Sunny. Highs in the upper 70s to lower 80s. Light wind.
Tuesday Night... Mostly clear. Lows in the upper 40s to lower 50s. Light wind.
Wednesday... Sunny. Highs in the upper 70s to lower 80s. Light wind.
Wednesday Night... Clear. Lows in the upper 40s to lower 50s. Light wind.
Thursday... Clear. Highs in the upper 70s to lower 80s. Lows in the upper 40s to lower 50s.
Thursday Night... Clear. Highs in the upper 70s to lower 80s. Lows in the upper 40s to lower 50s.
Friday... Mostly sunny. Highs in the upper 70s to lower 80s.
Friday Night... Partly cloudy with a 20% chance of rain showers. Lows in the upper 40s.
Saturday... Partly cloudy. Highs in the mid to upper 60s. Lows in the 40s.
Saturday Night... Partly cloudy. Highs in the mid to upper 60s. Lows in the 40s.
Sunday... Partly cloudy. A 20% chance of rain showers. Highs in the upper 50s to lower 60s. Lows in the upper 30s to lower 40s.
Sunday Night... Partly cloudy. A 20% chance of rain showers. Highs in the upper 50s to lower 60s. Lows in the upper 30s to lower 40s.
POP = Probability of Precipitation
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