National Weather Service United States Department of Commerce

Saturday is slightly warmer than Friday for the mountains and deserts and around 5 degrees warmer for the coast and valleys. Highs in San Diego County in the lower 70s near the coast to the lower to mid 90s for the far inland valleys, in Orange County in the lower 70s near the coast to the mid 80s for far inland Orange County, in the 90s to around 100 for the Inland Empire, in the mid 90s to 103 for the Apple and Lucerne Valleys, 110 to 115 for the lower deserts, and in the upper 70s to upper 80s for the mountains for elevations from 4500 to 7000 feet.
Sunday will be a few degrees cooler than Saturday near the coast to 5 to 10 degrees cooler inland. Highs in San Diego County in the upper 60s near the coast to the 80s for the inland valleys, in Orange County in the upper 60s near the coast to around 80 for far inland Orange County, in the 80s to around 90 for the Inland Empire, in the mid 80s to mid 90s for the Apple and Lucerne Valleys, 102 to 108 for the lower deserts, and in the 70s for the mountains for elevations from 4500 to 7000 feet.

 

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