Weather
Bay Area Inland Highs Could Reach 103 This Weekend
San Francisco, CA – A Heat Advisory will cover parts of the San Francisco Bay Area and Central Coast this weekend, with inland highs in the mid 90s to near 103 degrees.
By Claire Benton · 2026-10-01T18:25:26.998Z
San Francisco, CA – A Heat Advisory will cover parts of the San Francisco Bay Area and Central Coast this weekend, with inland highs in the mid 90s to near 103 degrees.
According to the National Weather Service San Francisco Bay Area office, the advisory begins at 11 a.m. Saturday and continues through 10 p.m. Sunday.
Affected areas include the Sonoma Coastal Range, North Bay interior mountains, San Francisco Bay shoreline, East Bay and South Bay, Santa Cruz Mountains, Santa Lucia Range, southern Salinas Valley and interior Central Coast mountains.
The advisory also covers interior mountain areas of Monterey and San Benito counties.
The NWS expects inland afternoon temperatures to reach the middle 90s to near 103 degrees during the weekend. Higher elevations may see overnight lows only fall into the upper 60s to middle 70s, limiting recovery from daytime heat.
The weather service said the conditions could cause heat related illnesses for people spending long periods outdoors, particularly during physical activity.
Residents are advised to drink plenty of water or sports drinks and move outdoor activities to cooler portions of the day when possible. The NWS also recommends taking frequent breaks in air conditioned locations or shade.
People and pets should never be left unattended in vehicles during the heat.
The advisory footprint includes communities and terrain across a broad portion of the Bay Area and inland Central Coast, but temperatures will vary by location, with the highest readings expected inland rather than uniformly across the region.
The Heat Advisory remains scheduled to expire at 10 p.m. Sunday. Residents should monitor updated National Weather Service forecasts through the weekend for any changes in temperatures, timing or advisory coverage.