Weather WorldSusanville Muni, CA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Susanville Muni, CA Weather Forecast
Susanville Muni, CA Weather Forecast Date: 231 AM PDT Wed Sep 16 2026
The area/counties/county of: Lassen, including the cities of: Portola, Susanville, Westwood, Sierraville, and Loyalton.or toggle through each period.
Today... Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. Highs 68 to 78. Light winds becoming south around 10 mph in the afternoon.
Tonight... Clear in the evening, then partly cloudy with a slight chance of showers after midnight. Lows 36 to 46. Southwest winds around 10 mph in the evening becoming light.
Thursday... Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. Highs 66 to 76. Light winds becoming west around 10 mph in the afternoon.
Thursday Night... Clear. Lows 35 to 45. West winds around 10 mph in the evening becoming light.
Friday... Sunny. Highs 71 to 81. Light winds.
Friday Night... Clear. Lows 38 to 48.
Saturday... Clear. Highs 74 to 84. Lows 41 to 51.
Saturday Night... Clear. Highs 74 to 84. Lows 41 to 51.
Sunday... Partly cloudy. Highs 75 to 85. Lows 42 to 52.
Sunday Night... Partly cloudy. Highs 75 to 85. Lows 42 to 52.
Monday... Clear. Highs 76 to 86. Lows 42 to 52.
POP = Probability of Precipitation
Susanville Muni Radar Loop
Use the map search tool if you want to place a location marker on the radar map...