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Biscar Reservoir, CA Weather Forecast
Biscar Reservoir, CA Weather Forecast Date: 231 PM PDT Sun Sep 27 2026
The area/counties/county of: Lassen, including the cities of: Portola, Susanville, Westwood, Sierraville, and Loyalton.or toggle through each period.
Tonight... Mostly cloudy in the evening then clearing. Lows 32 to 42. Southwest winds around 10 mph in the evening becoming light.
Monday... Sunny. Highs 66 to 76. Light winds becoming northeast around 10 mph in the afternoon.
Monday Night... Clear. Lows 34 to 44. North winds around 10 mph in the evening becoming light.
Tuesday... Sunny. Highs 71 to 81. Light winds becoming northeast around 10 mph in the afternoon.
Tuesday Night... Clear. Lows 37 to 47. Light winds.
Wednesday... Sunny. Highs 75 to 85.
Wednesday Night... Clear. Lows 40 to 50.
Thursday... Clear. Highs 78 to 88. Lows 41 to 51.
Friday... Clear. Highs 78 to 88. Lows 41 to 51.
Friday Night... Partly cloudy. Lows 41 to 51.
Saturday... Clear. Highs 76 to 86. Lows 41 to 51.
POP = Probability of Precipitation
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