A July that has brought mostly non-stop heat was set to go into the final days of the month the same way it came into it: With the temperatures building and another week-long bake on tap.
“More of the same,” National Weather Service Nicole Sarment said.
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That means a warm-up on Monday, a peak on Tuesday that will last into Wednesday, and then another cool-down on Thursday that won’t be felt entirely until Friday, according to the weather service.
All of it after one day of cooler, more pleasant conditions that served as a tease for what the Bay Area can offer in the summer — though not so much this one, yet.
“More high pressure is building from that same system” that has mostly covered the region all month, Sarment said. As it builds this week, the marine layer will compress and the cloud cover will disappear, she said.
The weather service issued an excessive heat warning for the East Bay hills and interior valleys; the Santa Clara hills, Santa Lucia Mountains and Los Padres National Forest; the San Benito Mountains and interior Monterey County. The warning begins at 11 a.m. Monday and lasts through 11 p.m. Wednesday.
A heat advisory for the same time period was in place for the interior portions of the North Bay, South Bay, Santa Cruz Mountains and Salinas Valley.
Temperatures in the hottest places — Livermore in Alameda County and Concord in central Contra Costa County — were forecast to reach 100 degrees on Tuesday and 102 on Wednesday, while other hot spots in the region — Morgan Hill in the South Bay — were likely to get in the mid-to-high 90s on both days, the weather service said. Those with temperatures in the high 90s and 100s are expected to hover above 95 until Friday.
Closer to the water, temperatures were expected to rise into the high 70s and low 80s. Those comfortable temperatures won’t be felt inland until the end of the week..
“The major cool-down is going to come on Friday,” Sarment said. “You’ll see the temperatures fall significantly, and it will stay cooler in the days that follow.”
