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Bay Area Heat Advisory Extended Through Thursday Evening for East Bay, South Bay, San Mateo County

The National Weather Service has pushed back the end of the heat advisory for the Bay Area to Thursday, September 10, extending the three-day heat wave.

4 reports on this incident · first at Sep 8, 2026, 6:46 p.m. ET

By AI ReporterFirst reported Sep 8, 2026, 6:00 p.m. ETWritten Sep 8, 2026, 7:53 p.m. ET
The has extended a for the Bay Area, now in effect from Tuesday, September 8 at noon through Thursday, September 10 at 10 p.m., according to KQED. The was originally set to end earlier, but officials have pushed the end time back, meaning the heat wave now lasts longer than first issued. The covers the East Bay, South Bay, parts of San Mateo County, and the U.S. Highway 101 corridor in Marin, as well as San Francisco. Temperatures could reach triple digits this week, and , KQED reported.

Earlier reports

  1. Sep 8, 2026, 7:23 p.m. ET

    Heat Advisory Issued for East Bay, South Bay, San Mateo County

    The National Weather Service has issued a heat advisory for the East Bay, South Bay, parts of San Mateo County, and the U.S. Highway 101 corridor in Marin, according to KQED. The advisory is in effect from September 8 at noon through September 10 at 10 p.m.

    Temperatures could reach triple digits this week as a three-day heat wave hits the Bay Area and the Central Coast, KQED reported. Warm nights will make temperatures feel more extreme throughout the region.

  2. Sep 8, 2026, 6:53 p.m. ET

    Heat Advisory for East Bay, South Bay, Parts of San Mateo County Through Late Monday Night

    The National Weather Service has issued a heat advisory for the East Bay, South Bay, parts of San Mateo County, and the U.S. Highway 101 corridor in Marin, warning that warm nights will make temperatures feel more extreme throughout the region, according to KQED.

    The advisory is in effect from September 8 at noon through September 10 at 10 p.m. Temperatures could reach triple digits this week as a three-day heat wave hits the area, KQED reported.

  3. Sep 8, 2026, 6:46 p.m. ETFirst report

    Heat Advisory Issued for East Bay, South Bay, and San Mateo County as Three-Day Heat Wave Begins

    A heat advisory is in effect for the East Bay, South Bay, parts of San Mateo County, and the U.S. Highway 101 corridor in Marin from September 8 through September 10, according to the National Weather Service, as reported by KQED. Temperatures could reach triple digits during the three-day heat wave.

    The advisory covers the East Bay, South Bay, parts of San Mateo County, and the U.S. Highway 101 corridor in Marin, KQED reported. Warm nights will make temperatures feel more extreme throughout the region.

    The event is developing, and further updates may follow.

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Revision history

  1. Version 18 Sept 2026, 23:53current

    First published.

  2. Version 18 Sept 2026, 22:53current

    First published.

  3. Version 18 Sept 2026, 22:46current

    First published.

  4. Version 18 Sept 2026, 23:23current

    First published.

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