Highs 15 to 25 degrees above average resulting in moderate to major HeatRisk for inland areas. For the coastal areas: 78 to 90, western valleys and inland Orange County: 91 to 97, inland valleys: 94 to 103, mountains between 4000 ft and 7000 ft: 78 to 88, high desert: 93 to 98, low desert: 103 to 107.
Slightly cooler, but still hot inland with moderate HeatRisk for the low deserts. For the coastal areas: 72 to 84, western valleys and inland Orange County: 83 to 89, inland valleys: 87 to 95, mountains between 4000 ft and 7000 ft: 75 to 85, high desert: 89 to 95, low desert: 102 to 106.
Map of forecast high temperatures for Monday May 12, 2025. Much cooler with highs near average area wide. For the coastal areas: 65 to 70, western valleys and inland Orange County: 70 to 73, inland valleys: 70 to 77, mountains between 4000 ft and 7000 ft: 61 to 72, high desert: 77 to 86, low desert: 88 to 94.
Graphic describing the meaning of moderate HeatRisk and actions to take when under moderate risk. A moderate HeatRisk is the 2nd of 4 levels of HeatRisk. This level of heat affects most individuals sensitive to heat. Reduce time in the sun, stay hydrated, move outdoor activities to cooler times of day, wear lightweight clothing, use fans and AC.
Graphic describing the meaning of moderate HeatRisk and actions to take when under moderate risk. A moderate HeatRisk is the 2nd of 4 levels of HeatRisk. This level of heat affects most individuals sensitive to heat. Reduce time in the sun, stay hydrated, move outdoor activities to cooler times of day, wear lightweight clothing, use fans and AC.
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