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 Tue Oct 27 2026
The area/counties/county of: Lassen, including the cities of: Portola, Susanville, Westwood, Sierraville, and Loyalton.or toggle through each period.
Today... Partly cloudy in the morning then clearing. Highs 53 to 63. Light winds becoming west 10 to 15 mph in the afternoon.
Tonight... Clear. Lows 19 to 29. Northwest winds around 10 mph in the evening becoming light.
Wednesday... Sunny. Highs 53 to 63. Light winds.
Wednesday Night... Clear. Lows 21 to 31. Light winds.
Thursday... Mostly cloudy. Highs 53 to 63. Light winds.
Thursday Night... Mostly cloudy. Lows 21 to 31.
Friday... Partly cloudy. Highs 52 to 62. Lows 26 to 36.
Friday Night... Partly cloudy. Highs 52 to 62. Lows 26 to 36.
Saturday... Mostly cloudy in the morning, then partly cloudy with a slight chance of snow in the afternoon. Highs 46 to 56.
Saturday Night... Mostly cloudy in the evening then becoming partly cloudy. Slight chance of rain and snow. Lows 21 to 31.
Sunday... Partly cloudy. Slight chance of snow in the morning. Highs 44 to 54.
Sunday Night... Partly cloudy. Lows 20 to 30. Highs 48 to 58.
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