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Swamp Lake, WA Weather Forecast
Swamp Lake, WA Weather Forecast Date: 742 PM PDT Sat Oct 10 2026
The area/counties/county of: Upper Slopes Of The Eastern Washington Cascades Crest, including the cities of: Roslyn and Easton.or toggle through each period.
Rest of Tonight... Mostly cloudy. A chance of rain and high mountain snow showers in the evening, then a chance of high mountain snow showers overnight. Lows in the upper 20s to lower 30s. Chance of precipitation 50%.
Sunday... Mostly sunny. Highs in the lower 40s to lower 50s.
Sunday Night... Mostly clear. Lows in the upper 20s to lower 30s.
Columbus Day... Sunny. Highs in the upper 40s to mid 50s.
Monday Night... Mostly clear. Lows in the lower to mid 30s.
Tuesday... Sunny. Highs in the mid 40s to lower 50s, except in the 50s valleys.
Tuesday Night... Partly cloudy. A 20% chance of rain showers. Lows in the mid 30s to lower 40s. Highs in the upper 40s to upper 50s.
Wednesday... Partly cloudy. A 20% chance of rain showers. Lows in the mid 30s to lower 40s. Highs in the upper 40s to upper 50s.
Wednesday Night... Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the lower 50s to lower 60s.
Thursday... Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the lower 50s to lower 60s.
Friday... Partly cloudy. Lows in the upper 30s to mid 40s. Highs in the lower 50s to lower 60s.
POP = Probability of Precipitation
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