The worst of summer's first heat wave has passed through San Diego County, though toasty temperatures and an excessive heat warning will remain in effect through Sunday night.
The heat wave of the almost-summer season peaked Saturday, with inland temperatures soaring some 15 degrees above normal and desert temps scorching daytime highs in the triple digits, according to NBC 7's Greg Bledsoe.
Slightly cooler weather will begin to roll into San Diego starting Sunday and into the next week, Bledsoe said.
Dense fog kept the coast cooler on Sunday NBC 7's Vanessa Herrera said. The clouds will increase overnight and Monday will be a typical June morning with lots of cloud cover.
The marine layer should clear later on Monday giving the county plenty of sunshine and a cooler start to the week.
Temperatures will be in the upper 60s most of the week along the coast, and in the mid to upper 70s inland.
"For the mountains and the deserts it's a bigger warm-up, unfortunately, as we get into Wednesday," Herrera said. "But then we start to cool down and we get back into those 70s in the mountains and back to double-digit temperatures in the desert areas."
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“The hottest day of this heat wave is behind us, but cooling for the first part of this week will be slow," Bledsoe said.
The National Weather Service (NWS) had an excessive heat warning for San Diego County in effect through 8 p.m. Sunday, although Sunday was not quite as hot as earlier in the weekend. The warning expanded to Riverside and Imperial counties in Southern California as well.
Inland regions and the coast saw temperatures slightly cooler on Sunday.
Clouds hung around Sunday morning longer than usual as a deeper marine layer and stronger onshore flow pushed the clouds further inland.
Inland, winds picked up more Sunday.
“We’ll see slightly stronger winds today, which means firefighters may be dealing with a few gusts around 20 miles per hour as they work to put out the Pala fire," Bledsoe said Sunday.
The warm weather could cause heat related illness, especially in elderly residents, children and animals. Time spent outdoors should be limited and, when possible, strenuous activities should be done in the morning or evening, once it cools down. Light and loose-fitting clothing should be worn and San Diegans should drink plenty of water while weathering the heat wave, the NWS says.
For a list of “Cool Zones” in San Diego County, click here.
Bledsoe said warm temperatures are expected to linger after the weekend, only dropping a few degrees each day through the middle of next week.
For weather updates from NBC 7, click here.
