Temperatures 10 to 20 degrees above average will result in moderate HeatRisk for inland areas. For the coastal areas: 73 to 83, western valleys and inland Orange County: 83 to 91, inland valleys: 88 to 97, mountains between 4000 ft and 7000 ft: 73 to 82, high desert: 89 to 93, low desert: 99 to 103.
Map of forecast high temperatures for Saturday May 10, 2025. Temperatures 15 to 25 degrees above average will result in moderate to major HeatRisk for inland areas. For the coastal areas: 77 to 88, western valleys and inland Orange County: 87 to 95, inland valleys: 91 to 101, mountains between 4000 ft and 7000 ft: 76 to 85, high desert: 92 to 96, low desert: 103 to 106.
Above average temperatures with moderate HeatRisk lingering for the low deserts. For the coastal areas: 72 to 80, western valleys and inland Orange County: 79 to 86, inland valleys: 82 to 90, mountains between 4000 ft and 7000 ft: 72 to 82, high desert: 87 to 93, low desert: 100 to 104.
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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