| NWS Forecast for: Lower Chehalis River Valley Issued by: National Weather Service Seattle, WA Last Update: 236 PM PDT Tue Oct 27 2026 |  |
| Tonight: Rain in the evening, then showers and a slight chance of thunderstorms in the late evening and early morning. Rain late in the night. Rainfall amounts a quarter to a half inch possible, except higher amounts possible in thunderstorms. Lows in the upper 30s to mid 40s. Southwest wind 10 to 15 mph becoming west after midnight. Wednesday: Rain likely in the morning, then a chance of rain early in the afternoon. Rain likely late in the afternoon. Rainfall amounts a tenth to a quarter of an inch possible. Highs in the 50s. West wind to 10 mph becoming southwest around 10 mph in the afternoon. Wednesday Night: A chance of rain in the evening, then rain likely late in the evening. Rain at times after midnight. Rainfall amounts a quarter to a half inch possible. Lows in the mid 30s to lower 40s. Light wind. Thursday: Rain likely in the morning, then rain at times in the afternoon. Rainfall amounts a tenth to a quarter of an inch possible. Highs in the lower to mid 50s. Light wind becoming southeast around 10 mph in the afternoon. Thursday Night: Rain likely. Rainfall amounts less than a tenth of an inch likely. Lows in the mid 30s to lower 40s. Light wind becoming east around 10 mph after midnight. Friday: Mostly cloudy with a chance of rain in the morning, then mostly cloudy with rain showers and a slight chance of thunderstorms in the afternoon. Highs in the lower to mid 50s. Friday Night: Mostly cloudy with rain showers likely and a slight chance of thunderstorms in the evening, then mostly cloudy with a chance of rain after midnight. Lows in the mid to upper 30s. Saturday: Mostly cloudy with a chance of rain. Highs in the mid 50s. Saturday Night: Mostly cloudy with a slight chance of rain. Lows in the mid to upper 30s. Sunday: Partly sunny. Highs in the mid to upper 50s. Sunday Night: Partly cloudy. Lows in the mid to upper 30s. Monday: Partly sunny. Highs in the upper 50s. Monday Night: Mostly cloudy. Lows near 40. Tuesday: Partly sunny. Highs near 60. | |
| Zone Forecast: Lower Chehalis River Valley | |
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