Weather WorldUpper Boulder Lake, CA 7-Day Night Weather Forecast
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Upper Boulder Lake, CA Weather Forecast
Upper Boulder Lake, CA Weather Forecast Date: 239 AM PDT Thu Oct 08 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.
Today... Sunny. Highs in the lower 80s to lower 90s. East winds around 5 mph shifting to the northwest this afternoon.
Tonight... Clear. Lows in the lower 50s to lower 60s. Northwest winds around 5 mph shifting to the northeast in the late evening and early morning, then shifting to the southeast well after midnight.
Friday... Sunny. Highs in the lower 70s to lower 80s. South winds around 5 mph shifting to the east late in the morning, then shifting to the west in the afternoon.
Friday Night... Mostly clear in the evening, then partly cloudy with a 10% chance of showers after midnight. Lows in the mid 30s to lower 40s. Northwest winds 5 to 10 mph shifting to the north well after midnight.
Saturday... Partly cloudy in the morning then clearing. Highs in the lower 50s to lower 60s. North winds 5 to 10 mph.
Saturday Night... Mostly clear. Lows in the lower 30s to lower 40s. Highs in the mid 50s to mid 60s.
Sunday... Mostly clear. Lows in the lower 30s to lower 40s. Highs in the mid 50s to mid 60s.
Columbus Day... Sunny. Highs in the mid 50s to mid 60s.
Monday Night... Mostly clear. Lows in the mid 30s to mid 40s. Highs in the lower 60s to lower 70s.
Tuesday... Mostly clear. Lows in the mid 30s to mid 40s. Highs in the lower 60s to lower 70s.
Tuesday Night... Partly cloudy with a slight chance of showers in the evening, then mostly clear after midnight. Lows in the lower to mid 40s.
POP = Probability of Precipitation
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