CALWIRE Weather Roundup (Saturday, August 29, 2026)

13 active weather alerts statewide today, led by a extreme heat warning for Santa Ana Mountains and Foothills, plus coverage for Orange County Coastal, San Diego County Mountains.

EXTREME HEAT WARNING — Santa Ana Mountains and Foothills

Extreme Heat Warning issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — Orange County Coastal

Heat Advisory issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — San Diego County Mountains

Extreme Heat Warning issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — Coachella Valley

Extreme Heat Warning issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

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

Extreme Heat Warning issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — San Diego County Inland Valleys

Extreme Heat Warning issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

EXTREME HEAT WARNING — Orange County Inland

Extreme Heat Warning issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

HEAT ADVISORY — San Diego County Coastal Areas

Heat Advisory issued August 29 at 5:20AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

DENSE FOG ADVISORY — North Bay Interior Valleys

Dense Fog Advisory issued August 29 at 5:04AM PDT until August 29 at 9:00AM PDT by NWS San Francisco CA

HEAT ADVISORY — Santa Clarita Valley

Heat Advisory issued August 29 at 1:20AM PDT until August 29 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

HEAT ADVISORY — Santa Barbara County Southwestern Coast

Heat Advisory issued August 29 at 1:20AM PDT until August 29 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

EXTREME HEAT WARNING — Imperial County Southwest

Extreme Heat Warning issued August 29 at 12:09AM MST until August 29 at 8:00PM MST by NWS Phoenix AZ

AIR QUALITY ALERT — Imperial County Southwest

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Filed Under: Weather CALWIRE Weather Roundup Saturday