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Columbia County, WA 7-Day Night Weather Forecast
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Columbia County, WA Weather Forecast
Columbia County, WA Weather Forecast Date: 653 PM PDT Fri Sep 25 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.
Rest of Tonight... Partly cloudy. Patchy blowing dust in the evening. Lows in the lower to mid 40s. Windy. Southwest wind 20 to 30 mph with gusts to around 40 mph Decreasing to 5 to 15 mph with gusts to around 30 mph overnight.
Saturday... Mostly cloudy in the morning then clearing. Highs in the lower to mid 60s. Southwest wind 5 to 10 mph. Gusts up to 20 mph in the morning.
Saturday Night... Mostly cloudy. Lows in the upper 30s to lower 40s. Light wind.
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... Partly cloudy. Highs in the mid 60s to lower 70s. Lows in the 40s.
Tuesday... Partly cloudy. Highs in the mid 60s to lower 70s. Lows in the 40s.
Wednesday... Partly cloudy. Highs in the mid 60s to lower 70s. Lows in the 40s.
Thursday... Partly cloudy. Highs in the mid 60s to lower 70s. Lows in the 40s.
POP = Probability of Precipitation
Columbia County Radar Loop
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