The Bay Area was graced with the first day of fall on Thursday, but sweltering temperatures are making the great outdoors feel like it's the middle of the summer.
A Bay Area-wide heat advisory went into effect Sunday around noon and will continue into Monday as a high-pressure system blankets the area with unseasonably high heat.
The mercury rose to 94 degrees at San Francisco International Airport, breaking the old record for the day of 91 degrees set in 1970.
At Moffett Field near Mountain View the high temperature was 96 degrees, breaking the old record of 91 degrees set in 1978.
San Jose and Oakland tied records for the day of 97 degrees and 94 degrees, respectively.
National Weather Service meteorologist Drew Peterson said Monday could be a little warmer in the East Bay and on Tuesday temperatures will drop slightly.
The temperature Tuesday in San Francisco is expected to reach 90 degrees. In Oakland it's expected to be 92 degrees and in San Jose 97 degrees.
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By Wednesday, temperatures will drop significantly.
"There is relief in sight," Peterson said. "It's just a couple of days out."
The temperature Wednesday in San Francisco is forecast to be 66 degrees and in Oakland 70 degrees. The cooler temperatures will last through the weekend, Peterson said.
Red flag warnings have also been implemented in the North Bay as a result of expected gusty winds that could increase the threat of wildfires.
Sunday registered as the 23rd Spare the Air alert of the season and Bay Area residents are encouraged to stay indoors as well as carpool if possible to reduce the amount of unhealthy particulate matter in the air. A Spare the Air alert has also been scheduled for Monday.
