A heat advisory has been issued for the Bay Area on Tuesday, as some parts of the region could see triple-digit temperatures as the season of fall begins.

According to the National Weather Service, the advisory covers the East Bay, San Francisco Bay shoreline, the Santa Clara Valley and the city of San Francisco and is in effect from 11 a.m. through 7 p.m.

A Heat Advisory goes in effect from 11am to 7pm today.

Be sure to find ways to beat the heat, stay hydrated, and be prepared for a cool down and some rain chance late tonight and tomorrow! #CAwx pic.twitter.com/SJaNe83558 — NWS Bay Area 🌉 (@NWSBayArea) September 23, 2025

Forecasters said temperatures could reach 100 degrees for parts of the East Bay, while the Santa Clara Valley and areas close to San Francisco Bay could see hi

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