| NWS Forecast for: Lower Chehalis River Valley Issued by: National Weather Service Seattle, WA Last Update: 236 AM PDT Wed Oct 28 2026 | |
| Today: Showers in the morning, then showers likely late in the morning. A chance of showers in the afternoon. Rainfall amounts less than a tenth of an inch likely. Highs in the lower to mid 50s. Southwest wind to 10 mph. Tonight: Showers likely in the evening, then showers and a slight chance of thunderstorms after midnight. Rainfall amounts a tenth to a quarter of an inch possible, except higher amounts possible in thunderstorms. Lows in the upper 30s to mid 40s. South wind to 10 mph becoming southeast after midnight. Thursday: Showers likely in the morning, then showers in the afternoon. Rainfall amounts a tenth to a quarter of an inch possible. Highs in the lower to mid 50s. Southeast wind to 10 mph. Thursday Night: Rain showers likely. Rainfall amounts less than a tenth of an inch likely. Lows in the mid 30s to lower 40s. Southeast wind around 10 mph becoming east after midnight. Friday: Mostly cloudy with a chance of rain showers in the morning, then cloudy with rain showers in the afternoon. Rainfall amounts less than a tenth of an inch likely. Highs near 50. East wind around 10 mph becoming southeast in the afternoon. Friday Night: Mostly cloudy with showers likely and a slight chance of thunderstorms in the evening, then mostly cloudy with a chance of showers and a slight chance of thunderstorms after midnight. Lows near 40. Saturday: Mostly cloudy with a chance of rain showers. Highs in the lower to mid 50s. Saturday Night: Mostly cloudy. A chance of rain showers in the evening. Lows in the mid 30s to lower 40s. Sunday: Partly sunny with a slight chance of rain showers. Highs in the mid 50s. Sunday Night: Partly cloudy with a slight chance of rain showers in the evening, then mostly cloudy after midnight. Lows near 40. Monday: Partly sunny. Patchy fog in the morning. Highs in the mid 50s. Monday Night: Mostly cloudy with a slight chance of rain showers. Lows in the mid 30s to lower 40s. Tuesday: Partly sunny. Areas of fog in the morning. Highs in the mid to upper 50s. | |
| Zone Forecast: Lower Chehalis River Valley | |
Visit your local NWS office at: https://www.weather.gov/sew |