| NWS Forecast for: Lower Chehalis River Valley Issued by: National Weather Service Seattle, WA Last Update: 236 PM PDT Wed Jul 22 2026 |  |
Tonight: Mostly cloudy. A slight chance of thunderstorms in the evening, then a chance of thunderstorms after midnight. Lows near 60. West wind around 10 mph becoming southwest to 10 mph after midnight. Gusts to 20 mph. Thursday: Mostly cloudy. A chance of showers in the morning. A slight chance of thunderstorms in the morning. A slight chance of showers in the afternoon. Highs in the upper 60s to mid 70s. Southwest wind to 10 mph with gusts to 20 mph becoming west around 10 mph in the afternoon. Thursday Night: Mostly cloudy. Lows in the mid to upper 50s. West wind to 10 mph in the evening becoming light. Friday: Mostly cloudy. Highs in the upper 60s to mid 70s. Light wind becoming west around 10 mph in the afternoon. Friday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid to upper 50s. West wind around 10 mph in the evening becoming light. Saturday: Mostly cloudy with a chance of showers. Highs in the mid to upper 60s. Saturday Night: Mostly cloudy with a chance of rain. Lows in the upper 50s. Sunday: Mostly cloudy with a chance of rain. Highs in the mid 60s to lower 70s. Sunday Night: Mostly cloudy. A slight chance of rain in the evening. Lows in the lower to mid 50s. Monday: Mostly cloudy. Highs near 70. Monday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower to mid 50s. Tuesday: Mostly cloudy. A slight chance of rain in the morning. Highs near 70. Tuesday Night: Partly cloudy. Lows in the lower 50s. Wednesday: Mostly sunny. Highs in the upper 60s to mid 70s. | |
| Zone Forecast: Lower Chehalis River Valley | |
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