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Spirit Lake, WA Weather Forecast
Spirit Lake, WA Weather Forecast Date: 1128 AM PDT Fri Aug 28 2026
The area/counties/county of: South Washington Cascades, including the cities of: Mt. St. Helens, Larch Mountain, and Indian Heaven Wilderness.or toggle through each period.
This Afternoon... Sunny. Free air freezing level 12000 feet. West wind 5 to 10 mph.
Tonight... Partly cloudy in the evening, then becoming mostly cloudy. Free air freezing level 12000 feet, Decreasing to free air freezing level 11000 feet after midnight. West wind 5 to 10 mph.
Saturday... Mostly cloudy with a chance of rain showers in the morning, then mostly sunny with a slight chance of rain showers in the afternoon. Snow level 6500 feet. West wind 10 to 15 mph. Chance of rain 50%. Rainfall amounts less than a tenth of an inch.
Saturday Night... Mostly cloudy. Free air freezing level 9000 feet, increasing to free air freezing level 10000 feet after midnight. West wind 5 to 10 mph.
Sunday... Partly sunny. Free air freezing level 11000 feet, increasing to free air freezing level 12000 feet in the afternoon. West wind 5 to 10 mph.
Sunday Night... Mostly clear. Free air freezing level 12000 feet.
Monday... Sunny. Free air freezing level 12000 feet.
Monday Night... Partly cloudy. Free air freezing level 13000 feet.
Tuesday... Partly sunny with a 20% chance of rain. Snow level above 8000 feet.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. A 50% chance of rain. Snow level above 8000 feet.
Wednesday... Rain. Snow level 8000 feet. Chance of rain 90%.
Wednesday Night... Rain. Snow level 7500 feet. Chance of rain 90%.
POP = Probability of Precipitation
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