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Upper Cliff Lake, CA Weather Forecast
Upper Cliff Lake, CA Weather Forecast Date: 239 PM PDT Sat Aug 08 2026
The area/counties/county of: South Central Siskiyou County, including the cities of: Mount Shasta, Dunsmuir, and Mccloud.or toggle through each period.
Tonight... Clear. Patchy smoke well after midnight. Lows in the lower 50s to lower 60s. North winds 5 to 10 mph becoming around 5 mph well after midnight.
Sunday... Sunny. Areas of smoke in the morning. Patchy smoke in the afternoon. Highs in the mid 80s to mid 90s. Northeast winds around 5 mph shifting to the west in the afternoon.
Sunday Night... Clear. Lows in the lower 50s to lower 60s. Northwest winds 5 to 10 mph shifting to the north well after midnight.
Monday... Sunny. Highs in the mid 80s to mid 90s. North winds around 5 mph shifting to the southeast early in the afternoon, then shifting to the southwest late in the afternoon.
Monday Night... Clear. Lows in the lower 50s to lower 60s. South winds around 5 mph shifting to the north after midnight.
Tuesday... Clear. Highs in the lower 80s to lower 90s. Lows in the lower 50s to lower 60s.
Wednesday... Clear. Highs in the lower 80s to lower 90s. Lows in the lower 50s to lower 60s.
Wednesday Night... Mostly clear. Lows in the mid 40s to mid 50s. Highs in the lower 80s to lower 90s.
Thursday... Mostly clear. Lows in the mid 40s to mid 50s. Highs in the lower 80s to lower 90s.
Thursday Night... Partly cloudy. Slight chance of showers in the evening. Lows in the mid 40s to mid 50s.
Friday... Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs in the mid 70s to mid 80s.
Friday Night... Partly cloudy. Slight chance of showers in the evening. Lows in the mid 40s to mid 50s.
POP = Probability of Precipitation
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