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Monument Lake, CA Weather Forecast
Monument Lake, CA Weather Forecast Date: 311 AM PDT Wed Aug 19 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... Mostly sunny. Highs 67 to 81. South winds up to 5 mph with gusts to around 20 mph shifting to the southwest 5 to 15 mph with gusts to around 30 mph in the afternoon.
Tonight... Mostly cloudy. Lows 48 to 60. Southwest winds up to 10 mph with gusts to around 25 mph shifting to the southeast after midnight.
Thursday... Sunny. Highs 67 to 81. Southwest winds up to 15 mph. Gusts up to 30 mph in the afternoon.
Thursday Night... Mostly clear. Lows 48 to 60. West winds up to 10 mph. Gusts up to 30 mph in the evening.
Friday... Mostly sunny. Highs 63 to 79. Southwest winds up to 15 mph. Gusts up to 30 mph in the afternoon.
Friday Night... Partly cloudy. Lows 47 to 59.
Saturday... Sunny. Highs 62 to 78.
Saturday Night... Partly cloudy. Lows 45 to 57.
Sunday... Mostly clear. Highs 61 to 77. Lows 43 to 56.
Monday... Mostly clear. Highs 61 to 77. Lows 43 to 56.
POP = Probability of Precipitation
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