Weather WorldJohnstonville, CA 7-Day Night Weather Forecast
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Johnstonville, CA Weather Forecast
Johnstonville, CA Weather Forecast Date: 231 PM PST Fri Nov 06 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. Light winds.
Saturday... Sunny. Highs 59 to 69. Light winds becoming south around 10 mph in the afternoon.
Saturday Night... Partly cloudy. Lows 28 to 38. Light winds.
Sunday... Mostly cloudy. Highs 58 to 68. Light winds.
Sunday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows 28 to 38. Light winds.
Monday... Mostly cloudy. Highs 58 to 68.
Monday Night... Partly cloudy. Lows 26 to 36.
Tuesday... Clear. Highs 57 to 67. Lows 29 to 39.
Tuesday Night... Clear. Highs 57 to 67. Lows 29 to 39.
Veterans Day... Partly cloudy. Highs 58 to 68. Lows 30 to 40.
Wednesday Night... Partly cloudy. Highs 58 to 68. Lows 30 to 40.
Thursday... Mostly cloudy. Highs 55 to 65.
Thursday Night... Mostly cloudy with a slight chance of rain. Lows 28 to 38.
POP = Probability of Precipitation
Johnstonville Radar Loop
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