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Swains Hole, CA 7-Day Night Weather Forecast
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Swains Hole, CA Weather Forecast
Swains Hole, CA Weather Forecast Date: 232 PM PDT Mon Aug 31 2026
The area/counties/county of: Lassen, including the cities of: Portola, Susanville, Westwood, Sierraville, and Loyalton.or toggle through each period.
Tonight... Partly cloudy. Patchy smoke. Lows 39 to 49. West winds 10 to 15 mph. Gusts up to 30 mph in the evening.
Tuesday... Sunny in the morning then becoming partly cloudy. Patchy smoke through the day. Areas of blowing dust in the afternoon. Highs 69 to 79. Southwest winds around 10 mph increasing to 15 to 25 mph with gusts up to 35 mph in the afternoon.
Tuesday Night... Mostly cloudy in the evening then clearing. Areas of blowing dust and patchy smoke in the evening. Lows 32 to 42. Southwest winds 10 to 15 mph with gusts up to 30 mph.
Wednesday... Mostly cloudy. Highs 62 to 72. Southwest winds 10 to 15 mph. Gusts up to 35 mph in the afternoon.
Wednesday Night... Partly cloudy. Chance of showers after midnight. Lows 34 to 44. Southwest winds 10 to 15 mph with gusts up to 45 mph.
Thursday... Showers likely in the morning, then showers likely and slight chance of thunderstorms in the afternoon. Highs 62 to 72.
Thursday Night... Showers likely and slight chance of thunderstorms in the evening, then chance of showers after midnight. Lows 34 to 44.
Friday... Mostly cloudy. Chance of showers in the morning, then chance of showers and thunderstorms in the afternoon. Highs 63 to 73.
Friday Night... Partly cloudy with a slight chance of showers. Lows 33 to 43. Highs 66 to 76.
Saturday... Partly cloudy with a slight chance of showers. Lows 33 to 43. Highs 66 to 76.
Saturday Night... Partly cloudy in the evening then becoming clear. Lows 34 to 44.
Sunday... Sunny. Highs 67 to 77.
Sunday Night... Mostly clear. Slight chance of showers. Lows 35 to 45. Highs 72 to 82.
POP = Probability of Precipitation
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