Lake Sylvester, WA 7-Day Night Weather Forecast
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Lake Sylvester, WA Weather Forecast


Lake Sylvester, WA Weather Forecast Date: 1135 AM PDT Sun Aug 23 2026
The area/counties/county of: Western Chelan County, including the cities of: Stevens Pass, Holden Village, and Stehekin.or toggle through each period.
Rest of Today... Partly cloudy. Highs in the upper 60s to upper 70s. Northwest wind 5 to 15 mph with gusts up to 30 mph.
Tonight... Mostly clear. Lows in the lower 50s to lower 60s. Gusts up to 25 mph.
Monday... Sunny, warmer. Highs in the lower 80s to lower 90s.
Monday Night... Partly cloudy. Lows in the upper 50s to mid 60s.
Tuesday... Sunny, warmer. Highs in the mid 80s to mid 90s.
Tuesday Night... Mostly clear. Lows in the upper 50s to upper 60s. Highs in the upper 70s to upper 80s.
Wednesday... Mostly clear. Lows in the upper 50s to upper 60s. Highs in the upper 70s to upper 80s.
Wednesday Night... Partly cloudy. Lows in the lower 50s to lower 60s. Highs in the upper 60s to upper 70s.
Thursday... Partly cloudy. Lows in the lower 50s to lower 60s. Highs in the upper 60s to upper 70s.
Friday... Partly cloudy. Lows in the lower 50s to lower 60s. Highs in the upper 60s to upper 70s.
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