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Big Meadows Reservoir, CA Weather Forecast
Big Meadows Reservoir, CA Weather Forecast Date: 231 PM PDT Mon Aug 10 2026
The area/counties/county of: Lassen, including the cities of: Portola, Susanville, Westwood, Sierraville, and Loyalton.or toggle through each period.
Tonight... Clear. Haze after midnight. Lows 49 to 59. West winds 10 to 15 mph with gusts up to 30 mph in the evening becoming light.
Tuesday... Sunny. Haze in the morning. Patchy smoke through the day. Highs 87 to 97. Light winds becoming southwest 10 to 15 mph with gusts up to 30 mph in the afternoon.
Tuesday Night... Clear. Patchy smoke after midnight. Lows 47 to 57. West winds 10 to 15 mph with gusts up to 30 mph in the evening becoming light.
Wednesday... Partly cloudy. Chance of showers in the afternoon. Highs 83 to 93. Light winds becoming southwest around 10 mph in the afternoon.
Wednesday Night... Partly cloudy with a chance of showers. Lows 45 to 55. West winds 10 to 15 mph in the evening becoming light.
Thursday... Partly cloudy. Slight chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs 78 to 88.
Thursday Night... Partly cloudy. Slight chance of showers in the evening. Lows 41 to 51.
Friday... Clear. Highs 79 to 89. Lows 41 to 51.
Saturday... Clear. Highs 79 to 89. Lows 41 to 51.
Sunday... Clear. Highs 79 to 89. Lows 41 to 51.
Sunday Night... Partly cloudy. Lows 42 to 52. Highs 76 to 86.
POP = Probability of Precipitation
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