Johnston Lake, CA 7-Day Night Weather Forecast
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Johnston Lake, CA Weather Forecast


Johnston Lake, CA Weather Forecast Date: 310 AM PDT Wed Oct 14 2026
The area/counties/county of: Upper San Joaquin River, including the cities of: Devils Postpile, Florence Lake, and Lake Thomas Edison.or toggle through each period.
Today... Warmer, sunny. Highs 49 to 65. North winds up to 10 mph with gusts to around 25 mph.
Tonight... Clear. Lows 32 to 44. Northeast winds 5 to 15 mph with gusts to around 40 mph.
Thursday... Warmer, sunny. Highs 48 to 68. Northeast winds 5 to 15 mph. Gusts up to 45 mph Decreasing to 30 mph in the afternoon.
Thursday Night... Breezy, clear. Lows 33 to 47. Northeast winds 15 to 25 mph with gusts to around 50 mph.
Friday... Warmer, sunny. Highs 51 to 69. Northeast winds 15 to 20 mph with gusts to around 50 mph Decreasing to up to 10 mph with gusts to around 25 mph in the afternoon.
Friday Night... Clear. Lows 32 to 45. Highs 48 to 66.
Saturday... Clear. Lows 32 to 45. Highs 48 to 66.
Sunday... Clear. Lows 32 to 45. Highs 48 to 66.
Sunday Night... Mostly clear. Lows 30 to 42. Highs 43 to 59.
Monday... Mostly clear. Lows 30 to 42. Highs 43 to 59.
Monday Night... Colder. Partly cloudy. Lows 24 to 36.
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