Weather WorldLassen High School, CA 7-Day Night Weather Forecast
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Lassen High School, CA Weather Forecast
Lassen High School, CA Weather Forecast Date: 231 PM PDT Sun Oct 04 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. Lows 46 to 56. Light winds.
Monday... Mostly cloudy in the morning then clearing. Slight chance of showers. Highs 80 to 90. Light winds becoming west around 10 mph in the afternoon.
Monday Night... Clear. Lows 43 to 53. Light winds.
Tuesday... Sunny. Highs 81 to 91. Light winds.
Tuesday Night... Clear. Lows 44 to 54. Light winds.
Wednesday... Sunny. Highs 82 to 92.
Wednesday Night... Clear. Lows 45 to 55.
Thursday... Clear. Highs 80 to 90. Lows 41 to 51.
Friday... Clear. Highs 80 to 90. Lows 41 to 51.
Saturday... Partly cloudy in the morning then becoming sunny. Highs 68 to 78.
Saturday Night... Partly cloudy. Slight chance of showers in the evening. Lows 32 to 42.
POP = Probability of Precipitation
Lassen High School Radar Loop
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