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ZIP 91942 · La Mesa, California

Current conditions and the National Weather Service 7-day forecast for ZIP code 91942, La Mesa, California — temperature, rain chance, wind, radar and alerts.

Saturday Aug 29 night: a low around 69°F. Sunday Aug 30: a high near 88°F and a low around 67°F. Highs over the period run 85°F to 89°F.

National Weather Service forecast for ZIP 91942, La Mesa, California
DayHighLowPrecip
Saturday Aug 2969°
Sunday Aug 3088°67°
Monday Aug 3185°66°
Tuesday Sep 185°67°
Wednesday Sep 286°67°
Thursday Sep 387°67°
Friday Sep 488°68°
Saturday Sep 589°

NOAA NWS NDFD 2.5 km, run 2026-08-30 00:00 UTC · days are local time in America/Los Angeles. The live page updates continuously.

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