Heating Up Summer’s Final Days

Get ready for another hot one. And not just hot -- we're talking record heat again.

It's expected to be hotter today than yesterday, prompting the Bay Area Air Quality Management District to announce a second Spare the Air alert this summer. And you know what that means: Carpool, wait until evening to run washer and dryers, no grilling and no lawn work. There's also a heat advisory in effect for the day.

Normally this time of year we would be feeling Mother Nature's air conditioner kicking in but this season has been anything but normal. The coolest summer on record in the Bay Area is not going out with a breeze. Instead, we're feeling record heat in the waning days of summer.

A strong region of high pressure and drying winds are sticking around the area for Tuesday, bringing more heat. With a warm start and no fog in sight conditions are expected to be the hottest on Tuesday. Expect 90s to low 100s inland with 80s & 90s bayside. At the coast it will make another great beach day with 70s and 80s, NBC meteorologist Jeff Ranieri says.

More records will be broken Tuesday as cooling fog is not expected to return until late Tuesday.

It's expected to reach 104 degrees in Fairfield; 103 in Gilroy, Concord and Livermore; 102 in Los Gatos; 98 in San Jose, 95 in Fremont and 89 degrees in San Francisco today.

A strong ridge of high pressure off the California coast is credited with this week's warming trend, after a summer in which unusually cool temperatures have preempted the need to declare any Spare the Air alerts until this week.

"We've been very lucky this year," district spokeswoman Kristine Roselius said. "By this time last year we'd had 10 Spare the Air alerts."

Air quality is expected to be the worst in the East Bay and the South Bay.

Fall starts this year on Sept. 22.