Weather WorldMendiboure Reservoir, CA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Mendiboure Reservoir, CA Weather Forecast
Mendiboure Reservoir, CA Weather Forecast Date: 231 PM PDT Sun Aug 02 2026
The area/counties/county of: Lassen, including the cities of: Portola, Susanville, Westwood, Sierraville, and Loyalton.or toggle through each period.
Tonight... Clear. Lows 46 to 56. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the evening.
Monday... Sunny. Areas of smoke. Highs 86 to 96. East winds 10 to 15 mph.
Monday Night... Clear. Patchy smoke. Lows 49 to 59. Light winds.
Tuesday... Sunny. Patchy smoke in the morning. Highs 91 to 101. Light winds becoming southeast around 10 mph in the afternoon.
Tuesday Night... Clear. Lows 50 to 60. West winds around 10 mph in the evening becoming light.
Wednesday... Sunny. Highs 93 to 103.
Wednesday Night... Clear. Lows 50 to 60.
Thursday... Clear. Highs 93 to 103. Lows 53 to 63.
Friday... Clear. Highs 93 to 103. Lows 53 to 63.
Saturday... Clear. Highs 93 to 103. Lows 53 to 63.
POP = Probability of Precipitation
Mendiboure Reservoir Radar Loop
Use the map search tool if you want to place a location marker on the radar map...