Walla Walla County, WA 7-Day Night Weather Forecast
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Walla Walla County, WA Weather Forecast


Walla Walla County, WA Weather Forecast Date: 302 PM PDT Sat Sep 26 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 cloudy. Lows in the upper 30s to lower 40s. Light wind, becoming east 5 to 10 mph overnight.
Sunday... Mostly cloudy. Highs in the mid to upper 60s. Light wind.
Sunday Night... Mostly clear. Lows in the upper 30s to lower 40s. Light wind.
Monday... Sunny. Highs in the upper 60s to lower 70s. Southwest wind 5 to 10 mph.
Monday Night... Mostly clear. Lows in the mid to upper 40s. South wind 5 to 10 mph.
Tuesday... Partly cloudy. Highs in the upper 60s to mid 70s. Lows in the lower 40s to lower 50s.
Wednesday... Partly cloudy. Highs in the upper 60s to mid 70s. Lows in the lower 40s to lower 50s.
Thursday... Partly cloudy. Highs in the upper 60s to mid 70s. Lows in the lower 40s to lower 50s.
Friday... Partly cloudy. Highs in the upper 60s to mid 70s. Lows in the lower 40s to lower 50s.
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