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City of Kelso, WashingtonKelso, WA 7-Day Night Weather Forecast
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Kelso, WA Weather Forecast
Kelso, WA Weather Forecast Date: 202 AM PDT Wed Sep 30 2026
The area/counties/county of: Cowlitz County Lowlands, including the cities of: Kelso, Longview, Castle Rock, Kalama, and Woodland.or toggle through each period.
Rest of Tonight... Mostly cloudy. Patchy fog. Lows in the lower 50s. Winds light.
Wednesday... Patchy fog in the morning. Partly sunny. Highs in the upper 60s. Winds light.
Wednesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Winds light.
Thursday... Patchy fog in the morning. Mostly sunny. Highs in the mid 70s. Light and variable winds, becoming light in the afternoon.
Thursday Night... Partly cloudy. Lows in the lower 50s. Winds light in the evening, becoming light and variable.
Friday... Mostly sunny. Highs in the mid 70s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Saturday... Mostly sunny. Highs in the upper 70s.
Saturday Night... Mostly clear. Lows in the lower 50s.
Sunday... Mostly sunny. Highs around 80.
Sunday Night... Mostly clear. Lows in the lower 50s.
Monday... Partly sunny. Highs in the mid 70s.
Monday Night... Partly cloudy. Lows in the lower 50s.
POP = Probability of Precipitation
Kelso Radar Loop
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