Mud Flat Reservoir, CA 7-Day Night Weather Forecast
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Mud Flat Reservoir, CA Weather Forecast


Mud Flat Reservoir, CA Weather Forecast Date: 231 PM 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.
Tonight... Mostly cloudy with a chance of rain and snow. Snow level 6000 to 6500 feet. Snow accumulation up to 1 inch. Lows 24 to 34. Light winds.
Sunday... Mostly cloudy in the morning then clearing. Highs 46 to 56. Light winds becoming northwest around 10 mph in the afternoon.
Sunday Night... Clear. Lows 21 to 31. Light winds.
Monday... Sunny in the morning then becoming partly cloudy. Highs 50 to 60. Light winds becoming southeast around 10 mph in the afternoon.
Monday Night... Mostly cloudy. Lows 25 to 35. Light winds becoming southeast around 10 mph with gusts up to 30 mph after midnight.
Tuesday... Mostly cloudy with a slight chance of snow in the morning, then partly cloudy with a chance of snow and rain in the afternoon. Highs 48 to 58.
Tuesday Night... Mostly cloudy in the evening, then partly cloudy with a slight chance of rain and snow after midnight. Lows 23 to 33.
Wednesday... Partly cloudy. Highs 51 to 61. Lows 23 to 33.
Thursday... Partly cloudy. Highs 51 to 61. Lows 23 to 33.
Friday... Partly cloudy. Highs 51 to 61. Lows 23 to 33.
Friday Night... Clear. Lows 23 to 33. Highs 54 to 64.
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