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About Lake Siskiyou - Mount ShastaLake Siskiyou, CA 7-Day Night Weather Forecast
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Lake Siskiyou, CA Weather Forecast
Lake Siskiyou, CA Weather Forecast Date: 828 AM PDT Mon Aug 17 2026
The area/counties/county of: South Central Siskiyou County, including the cities of: Mount Shasta, Dunsmuir, and Mccloud.or toggle through each period.
Rest of Today... Mostly cloudy then becoming partly cloudy late this morning then becoming sunny. Highs in the mid 70s to mid 80s. Southeast winds around 5 mph shifting to the south this afternoon.
Tonight... Mostly clear in the evening then becoming partly cloudy. Lows in the mid 40s to mid 50s. South winds around 5 mph shifting to the northwest in the late evening and early morning, then shifting to the north well after midnight.
Tuesday... Partly cloudy in the morning then becoming sunny. Highs in the lower 80s to lower 90s. Northeast winds around 5 mph early in the morning becoming light, then becoming southwest around 5 mph in the afternoon.
Tuesday Night... Partly cloudy in the evening then becoming mostly clear. Lows in the lower 50s to lower 60s. West winds around 5 mph shifting to the north after midnight.
Wednesday... Sunny. Highs in the lower 80s to lower 90s. Northeast winds around 5 mph shifting to the south in the afternoon.
Wednesday Night... Mostly clear. Lows in the lower 50s to lower 60s.
Thursday... Partly cloudy. Highs in the lower 80s to lower 90s. Lows in the lower 50s to lower 60s.
Thursday Night... Partly cloudy. Highs in the lower 80s to lower 90s. Lows in the lower 50s to lower 60s.
Friday... Partly cloudy in the morning then clearing. Highs in the mid 70s to mid 80s.
Friday Night... Mostly clear. Cooler. Lows in the mid 40s to mid 50s.
Saturday... Clear. Highs in the mid 70s to mid 80s. Lows in the mid 40s to mid 50s.
POP = Probability of Precipitation
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