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San Diego's Weather Forecast for September 28, 2022: Cooling off into the weekend

Posted at 7:50 AM, Sep 28, 2022
and last updated 2022-09-29 02:27:41-04

Marine layer clouds lingered at some coastal areas all day while we saw sunny skies inland and thunderstorms in the mountains and deserts.

The worst of the heatwave is over but temperatures remain 5 to 10 degrees above normal tomorrow before plummeting 10 to 15 degrees by Friday! The cooler weather with temperatures hovering near average will stick around into next week.

The marine layer will spread farther inland each morning which means the chance for patchy dense fog will also spread farther inland. A foggy start is expected for some coast and inland areas tomorrow with fog spreading farther inland to the foothills for Friday morning. Most areas will see clearing by mid to late morning but some coastal areas may be stuck in the clouds even into the afternoon.

A late-season surge of monsoon moisture brought flooding rains and abundant lightning to the mountains and some desert areas today. A slight chance for a few storms will continue into tomorrow.

Hurricane Ian made landfall as a strong Category 4 storm, nearly a Category 5 storm, with winds of 150mph near Cayo Costa, Florida, at 3:05 p.m. Eastern. It is bringing catastrophic storm surge, winds and flooding to the Florida peninsula. Nearly the entire state will be impacted by rain and wind as the storm crosses Florida before turning north towards southeast Georgia and the Carolinas as a Tropical Storm.

Thursday's Highs:
Coast: 72-81°
Inland: 85-94°
Mountains: 77-94°
Deserts: 102-106°

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