Source Lake, WA 7-Day Weather Forecast

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Source Lake, WA 7-Day Weather Forecast

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Source Lake WA weather  - Sunny - 63°F
Sunny
63°F
Updated 4:10 pm
Feels Like 49°F
Humidity 54%
Wind NW 12 mph
Barometer  30.15 in
Dew Point 46°F
Source Lake WA weather  - Sunny - 17°C
Sunny
17°C
Updated 4:10 pm
Feels Like 10°C
Humidity 54%
Wind NW 19 km/h
Barometer  102.1 kPa
Dew Point 8°C
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Source Lake Weather Forecast

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Source Lake, WA Weather Forecast Date: 236 PM PDT Sat Sep 26 2026

Weather forecast for Source Lake, WA


Tonight
Source Lake WA Weather for Tonight - Mostly Cloudy
Tonight... Mostly cloudy. Freezing level near 9000 feet. Light wind in the passes.
Sun
Source Lake WA Weather for Sunday - Partly Sunny
Hi: 59°FHi: 15°C
Sunday... Partly sunny in the morning then becoming sunny. Freezing level near 9500 feet. Afternoon pass temperatures in the upper 50s. Light wind in the passes.
Mon
Source Lake WA Weather for Monday - Mostly Sunny
Hi: 59°FHi: 15°C
Monday... Mostly sunny. Freezing level near 10000 feet. Afternoon pass temperatures in the upper 50s. Light wind in the passes.
Tue
Source Lake WA Weather for Tuesday - Chance Of Rain
Tuesday... Mostly cloudy with a chance of rain in the morning, then mostly cloudy with rain likely in the afternoon. Snow level near 9500 feet.
Wed
Source Lake WA Weather for Wednesday - Chance Of Rain
Wednesday... Partly sunny. A chance of rain in the morning, then a slight chance of rain in the afternoon. Snow level near 7500 feet.
Thu
Source Lake WA Weather for Thursday - Chance Of Rain
Thursday... Partly sunny with a slight chance of rain. Snow level near 8000 feet.
Fri
Source Lake WA Weather for Friday - Mostly Cloudy
Friday... Mostly cloudy in the morning then becoming mostly sunny. Freezing level near 8500 feet.

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