Frenchman Lake, CA 7-Day Night Weather Forecast
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Frenchman Lake, CA Weather Forecast


Frenchman Lake, CA Weather Forecast Date: 231 AM PDT Sat Oct 31 2026
The area/counties/county of: Lassen, including the cities of: Portola, Susanville, Westwood, Sierraville, and Loyalton.or toggle through each period.
Today... Rain and snow likely. Snow level 6500 to 7000 feet. Highs 43 to 53. Light winds becoming south around 10 mph in the afternoon.
Tonight... Mostly cloudy with a chance of rain and snow. Snow level 6500 feet lowering to 5500 feet. Lows 24 to 34. Light winds.
Sunday... Mostly cloudy in the morning then clearing. Highs 45 to 55. Light winds becoming northwest around 10 mph in the afternoon.
Sunday Night... Clear. Lows 19 to 29. Light winds.
Monday... Partly cloudy. Highs 49 to 59. Light winds becoming southeast around 10 mph in the afternoon.
Monday Night... Mostly cloudy. Lows 24 to 34.
Tuesday... Mostly cloudy with a slight chance of snow in the morning, then partly cloudy with a slight chance of rain and snow in the afternoon. Highs 48 to 58.
Tuesday Night... Mostly cloudy. Slight chance of rain in the evening. Lows 22 to 32.
Wednesday... Mostly cloudy with a slight chance of snow in the morning, then partly cloudy in the afternoon. Highs 48 to 58.
Wednesday Night... Partly cloudy in the evening, then mostly cloudy with a slight chance of rain after midnight. Lows 24 to 34.
Thursday... Mostly cloudy with a slight chance of rain and snow. Highs 50 to 60. Lows 23 to 33.
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