CALWIRE Weather Roundup (Monday, July 27, 2026)

HEAT ADVISORY — Orange County Coastal

Heat Advisory issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — San Bernardino and Riverside County Valleys-The Inland Empire

Heat Advisory issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — Apple and Lucerne Valleys

Extreme Heat Warning issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — Orange County Inland

Heat Advisory issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — San Bernardino County Mountains

Heat Advisory issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — San Diego County Coastal Areas

Heat Advisory issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — Santa Ana Mountains and Foothills

Heat Advisory issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — San Diego County Mountains

Heat Advisory issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — Coachella Valley

Extreme Heat Warning issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — San Diego County Inland Valleys

Heat Advisory issued July 27 at 5:24AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — Indian Wells Valley

Extreme Heat Warning issued July 27 at 4:56AM PDT until July 27 at 9:00PM PDT by NWS Hanford CA

EXTREME HEAT WARNING — Lake Havasu and Fort Mohave

Extreme Heat Warning issued July 27 at 4:47AM PDT until July 27 at 8:00PM PDT by NWS Las Vegas NV

EXTREME HEAT WARNING — Antelope Valley

Extreme Heat Warning issued July 27 at 3:04AM PDT until July 27 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

HEAT ADVISORY — Santa Ynez Mountains Western Range

Heat Advisory issued July 27 at 3:04AM PDT until July 27 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

HEAT ADVISORY — Cuyama Valley

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Filed Under: CALWIRE Weather Roundup Monday