Weather WorldShays Hole Reservoir, CA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Shays Hole Reservoir, CA Weather Forecast
Shays Hole Reservoir, CA Weather Forecast Date: 231 AM PDT Sat Aug 15 2026
The area/counties/county of: Lassen, including the cities of: Portola, Susanville, Westwood, Sierraville, and Loyalton.or toggle through each period.
Today... Sunny. Highs 80 to 90. Light winds becoming southwest 10 to 15 mph in the afternoon.
Tonight... Clear in the evening then becoming partly cloudy. Lows 41 to 51. West winds 10 to 15 mph in the evening becoming light.
Sunday... Sunny. Highs 81 to 91. Light winds becoming southwest around 10 mph in the afternoon.
Sunday Night... Partly cloudy. Lows 45 to 55. West winds around 10 mph in the evening becoming light.
Monday... Mostly cloudy in the morning then clearing. Highs 82 to 92. Light winds becoming southwest around 10 mph in the afternoon.
Monday Night... Partly cloudy. Lows 42 to 52.
Tuesday... Partly cloudy. Highs 83 to 93. Lows 45 to 55.
Wednesday... Partly cloudy. Highs 83 to 93. Lows 45 to 55.
Thursday... Partly cloudy. Highs 83 to 93. Lows 45 to 55.
POP = Probability of Precipitation
Shays Hole Reservoir Radar Loop
Use the map search tool if you want to place a location marker on the radar map...