| NWS Forecast for: Lower Chehalis River Valley Issued by: National Weather Service Seattle, WA Last Update: 236 AM PDT Sat May 30 2026 | |
| Today: Mostly cloudy in the morning then becoming mostly sunny. Highs in the upper 50s to mid 60s. Northwest wind around 10 mph becoming west in the afternoon. Tonight: Mostly clear. Lows in the upper 30s to mid 40s. Northwest wind 10 to 15 mph decreasing to 10 mph or less after midnight. Gusts to 25 mph. Sunday: Sunny. Highs in the 60s to lower 70s. Northwest wind to 10 mph becoming west in the afternoon. Sunday Night: Clear. Lows in the upper 30s to mid 40s. Northwest wind 10 to 15 mph becoming north after midnight. Monday: Sunny. Highs in the mid 70s to lower 80s. Light wind becoming northeast to 10 mph in the afternoon. Monday Night: Mostly clear. Lows in the lower 50s. Tuesday: Sunny. Highs in the lower to mid 80s. Tuesday Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of rain after midnight. Lows in the lower 50s. Wednesday: Mostly cloudy with a slight chance of rain. Highs in the 60s. Wednesday Night: Mostly cloudy. Lows in the lower 50s. Thursday: Partly sunny. A slight chance of rain in the morning. Highs in the lower to mid 60s. Thursday Night: Partly cloudy. Lows in the upper 40s. Friday: Partly sunny. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs in the lower to mid 60s. | |
| Zone Forecast: Lower Chehalis River Valley | |
Visit your local NWS office at: https://www.weather.gov/sew |