7-Day Zone Forecast for Lower Chehalis River Valley (Text-Only)
NWS Forecast for: Lower Chehalis River Valley
Issued by: National Weather Service Seattle, WA
Last Update: 130 PM PST Sat Jan 10 2026


Tonight: Rain. Rainfall amounts one to three inches possible. Lows in the lower to mid 40s. South wind around 10 mph becoming southeast after midnight. Gusts to 20 mph.

Sunday: Rain in the morning, then rain likely in the late morning and early afternoon. Rain late in the afternoon. Rainfall amounts a quarter to a half inch possible. Highs near 50. South wind 10 to 15 mph with gusts to 25 mph.

Sunday Night: Rain. Rainfall amounts a quarter to a half inch possible. Lows in the mid to upper 40s. South wind 10 to 15 mph with gusts to 30 mph.

Monday: Rain at times. Rainfall amounts a quarter to a half inch possible. Highs in the lower to mid 50s. South wind 10 to 15 mph with gusts to 30 mph.

Monday Night: Mostly cloudy with rain likely in the evening, then mostly cloudy with a chance of rain after midnight. Rainfall amounts less than a tenth of an inch likely. Lows in the mid to upper 40s. South wind around 10 mph with gusts to 20 mph in the evening becoming light.

Tuesday: Partly sunny. Highs in the mid to upper 50s.

Tuesday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower to mid 40s.

Wednesday: Partly sunny. A slight chance of rain in the morning. Highs in the lower to mid 50s.

Wednesday Night: Mostly cloudy. Lows in the lower 40s.

Thursday: Mostly sunny. Highs in the lower 50s.

Thursday Night: Mostly clear. Lows near 40.

Friday: Sunny. Highs in the lower to mid 50s.

Friday Night: Clear. Lows near 40.

Saturday: Sunny. Highs in the lower to mid 50s.







Zone Forecast: Lower Chehalis River Valley

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