Home / Weather / Bay Area Swelters: Heat Wave Ignites Fire Fears
Bay Area Swelters: Heat Wave Ignites Fire Fears
11 Jun
Summary
- Temperatures will reach the 90s across the Bay Area on Thursday.
- Red flag warnings are in effect for mountain and East Bay Hills.
- Fire officials urge caution due to human-caused wildfire risk.

The San Francisco Bay Area is set for a significant heatwave, with temperatures expected to reach the 90s on Thursday, far exceeding typical seasonal averages. While coastal communities will see milder conditions in the 60s and 70s, inland valleys are predicted to experience extreme heat, with some elevated areas potentially reaching triple digits. A red flag warning has been issued for mountain areas north of the Bay and parts of the East Bay Hills from late Wednesday to Thursday morning, signaling heightened wildfire risk due to dry fuels and windy weather.
Wind gusts are anticipated to reach up to 45 miles per hour, with some exposed locations possibly exceeding 60 mph. In response to the elevated fire danger, fire officials have implemented stricter restrictions in East Bay parks, prohibiting campfires, barbecues, welding, and off-road driving. The primary concern is human activity, as officials note that approximately 90% of wildfires are human-caused. Residents are urged to be extremely careful with activities that could spark a fire, such as yard work or vehicle use, to mitigate the risk of the dry conditions leading to a dangerous wildfire.
Relief from the intense heat is forecast to arrive by Sunday, with cooler air expected to bring temperatures down to more moderate levels, including a sunny 71 degrees in San Francisco. Until then, vigilance and caution are paramount to prevent any ignition that could escalate into a widespread fire event.