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Isinglass Lake, CA Weather Forecast
Isinglass Lake, CA Weather Forecast Date: 239 PM PDT Tue Sep 15 2026
The area/counties/county of: Western Siskiyou County, including the cities of: Somes Bar, Happy Camp, Callahan, Etna, Fort Jones, Greenview, and Scott Bar.or toggle through each period.
Tonight... Mostly clear. Lows in the lower 40s to lower 50s. North winds 10 to 15 mph shifting to the northeast 5 to 10 mph well after midnight.
Wednesday... Sunny in the morning then becoming partly cloudy. A 20% chance of thunderstorms. Highs in the mid 60s to mid 70s. Northeast winds 5 to 10 mph.
Wednesday Night... Partly cloudy in the evening then clearing. A 20% chance of thunderstorms. Lows in the mid 40s to lower 50s. East winds 5 to 10 mph.
Thursday... Sunny in the morning, then partly cloudy with a chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s to mid 70s. Southeast winds around 5 mph shifting to the west in the afternoon. Chance of precipitation 30%.
Thursday Night... Partly cloudy with a 20% chance of rain in the evening, then clear after midnight. Lows in the mid 40s to mid 50s. West winds around 5 mph shifting to the southeast well after midnight.
Friday... Clear. Highs in the mid 70s to mid 80s. Lows in the mid 40s to mid 50s.
Friday Night... Clear. Highs in the mid 70s to mid 80s. Lows in the mid 40s to mid 50s.
Saturday... Mostly clear. Highs in the mid 70s to mid 80s. Lows in the lower to mid 50s.
Saturday Night... Mostly clear. Highs in the mid 70s to mid 80s. Lows in the lower to mid 50s.
Sunday... Mostly clear. Highs in the lower 80s to lower 90s. Lows in the lower 50s to lower 60s.
Sunday Night... Mostly clear. Highs in the lower 80s to lower 90s. Lows in the lower 50s to lower 60s.
Monday... Mostly clear. Highs in the mid 70s to mid 80s. Lows in the lower 50s to lower 60s.
Monday Night... Mostly clear. Highs in the mid 70s to mid 80s. Lows in the lower 50s to lower 60s.
POP = Probability of Precipitation
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