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Altha Lake, CA Weather Forecast
Altha Lake, CA Weather Forecast Date: 310 AM PDT Fri Oct 02 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... Sunny in the morning then becoming partly sunny. Patchy smoke late in the afternoon. Highs 61 to 77. Southwest winds up to 10 mph.
Tonight... Mostly cloudy in the evening then becoming partly cloudy. Patchy smoke. Lows 43 to 55. Northeast winds up to 5 mph. Gusts up to 25 mph in the evening.
Saturday... Mostly sunny. Highs 62 to 78. Northeast winds up to 5 mph shifting to the west in the afternoon.
Saturday Night... Mostly clear. Lows 43 to 55. Southwest winds up to 5 mph shifting to the east after midnight.
Sunday... Sunny. Highs 61 to 77. East winds up to 10 mph shifting to the southwest in the afternoon.
Sunday Night... Mostly clear. Lows 40 to 54. Highs 56 to 74.
Monday... Mostly clear. Lows 40 to 54. Highs 56 to 74.
Tuesday... Mostly clear. Lows 40 to 54. Highs 56 to 74.
Wednesday... Sunny. Highs 59 to 75.
Wednesday Night... Mostly clear. Lows 40 to 54.
POP = Probability of Precipitation
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