Weather WorldBlack Lake, CA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Black Lake, CA Weather Forecast
Black Lake, CA Weather Forecast Date: 231 PM PDT Sat Oct 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. Lows 27 to 37. Northwest winds 10 to 15 mph with gusts up to 35 mph.
Sunday... Partly cloudy in the morning, then mostly cloudy with a slight chance of showers in the afternoon. Highs 51 to 61. Northeast winds 10 to 15 mph with gusts up to 30 mph.
Sunday Night... Mostly cloudy with a slight chance of showers in the evening, then partly cloudy with a slight chance of showers after midnight. Lows 22 to 32. Northeast winds 10 to 15 mph. Gusts up to 30 mph after midnight.
Columbus Day... Mostly cloudy in the morning then becoming partly cloudy. Chance of showers. Snow level 5000 feet rising to 6000 feet. Highs 48 to 58. Light winds becoming northwest around 10 mph in the afternoon.
Monday Night... Partly cloudy. Chance of showers in the evening. Lows 20 to 30. North winds around 10 mph in the evening becoming light.
Tuesday... Sunny. Highs 56 to 66.
Tuesday Night... Clear. Lows 25 to 35.
Wednesday... Clear. Highs 65 to 75. Lows 30 to 40.
Thursday... Clear. Highs 65 to 75. Lows 30 to 40.
Friday... Clear. Highs 65 to 75. Lows 30 to 40.
POP = Probability of Precipitation
Black Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...