If you thought it was hot today, just wait until tomorrow, and the next day, and the next day.
Temperatures are expected to hit triple digits in the inland parts of the Bay Area through Saturday, according to the NBC Bay Area weather department. Gilroy hit 99 degree Wednesday, so they are an easy target for 100-plus the rest of the week.
Forecasters say the cool down will not come until Sunday.
If things get too hot for you there is an easy solution: head to the coast. The coastal areas of Northern California will stay in the 60s and 70s.
A Spare the Air advisory has been issued for the Bay Area on Thursday. Additional Spare the Air days may be called Friday and Saturday, according to the Bay Area Air Quality Management District.
During Spare the Air days, residents are encouraged to cut back on polluting activities, including driving and using gas-powered lawnmowers. Those with respiratory issues should limit their time outdoors.
The hot weather also heightens fire danger, particularly in areas with dry grass or brush, Cal Fire spokesman Dan Berlant said. Campers and hikers should be especially careful when using fire in brushy areas, he said.
Those sticking close to home are also advised to be vigilant.
"One of the common causes of fires at home is equipment use, such as lawnmowers or weed-eaters," Berlant said. "On a hot day, especially when it's windy, it's easy for a mower blade to strike a rock and spark a fire on dry grass."