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Copco Lake, CA Weather Forecast
Copco Lake, CA Weather Forecast Date: 240 PM PDT Thu Sep 17 2026
The area/counties/county of: North Central And Southeast Siskiyou County, including the cities of: Pondosa, Bray, and Tennant.or toggle through each period.
Tonight... Mostly cloudy with a chance of showers and slight chance of thunderstorms early this evening, then mostly cloudy with a slight chance of rain late this evening. Partly cloudy after midnight. Lows in the lower to mid 40s. Northwest winds 5 to 10 mph. Chance of precipitation 30%.
Friday... Sunny. Highs in the mid 60s to mid 70s. North winds around 5 mph.
Friday Night... Clear. Lows in the lower 40s to lower 50s. North winds around 5 mph.
Saturday... Sunny. Highs in the lower 70s to lower 80s. Northeast winds around 5 mph.
Saturday Night... Mostly clear. Lows in the mid 40s to lower 50s. Northeast winds around 5 mph.
Sunday... Mostly clear. Highs in the mid 70s to mid 80s. Lows in the mid 40s to mid 50s.
Monday... Mostly clear. Highs in the mid 70s to mid 80s. Lows in the mid 40s to mid 50s.
Tuesday... Mostly clear. Highs in the lower 70s to lower 80s. Lows in the lower 40s to lower 50s.
Wednesday... Mostly clear. Highs in the lower 70s to lower 80s. Lows in the lower 40s to lower 50s.
POP = Probability of Precipitation
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