Weather WorldBoundary Lake, WA 7-Day Night Weather Forecast
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Boundary Lake, WA Weather Forecast
Boundary Lake, WA Weather Forecast Date: 302 PM PDT Mon Sep 28 2026
The area/counties/county of: Lower Slopes Of The Eastern Washington Cascades Crest, including the cities of: Appleton, Cle Elum, and Cliffdell.or toggle through each period.
Tonight... Mostly cloudy. Lows in the 40s. West wind 5 to 10 mph with gusts to around 30 mph.
Tuesday... Mostly cloudy with a 50% chance of rain showers. Highs in the lower 50s to lower 60s, except in the lower to mid 60s valleys. West wind 5 to 15 mph with gusts to around 35 mph.
Tuesday Night... Mostly cloudy. A 50% chance of rain showers in the evening. Lows in the upper 30s to upper 40s. West wind 5 to 15 mph with gusts to around 35 mph.
Wednesday... Sunny. Highs in the upper 50s to upper 60s, except in the mid 60s to lower 70s valleys. Northwest wind 5 to 10 mph with gusts to around 20 mph.
Wednesday Night... Partly cloudy. Lows in the 40s. Light wind.
Thursday... Partly cloudy. Highs in the lower 60s to lower 70s. Lows in the lower 40s to lower 50s.
Friday... Partly cloudy. Highs in the lower 60s to lower 70s. Lows in the lower 40s to lower 50s.
Saturday... Partly cloudy. Highs in the lower 60s to lower 70s. Lows in the lower 40s to lower 50s.
Sunday... Partly cloudy. Highs in the lower 60s to lower 70s. Lows in the lower 40s to lower 50s.
POP = Probability of Precipitation
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