first alert forecast

A Heat Wave is Coming: What to Expect in San Diego Over Next Few Days

The National Weather Service has issued an excessive heat warning for San Diego’s deserts and a heat advisory for other parts of the county, both in effect from 11 a.m. Thursday through 9 p.m. Saturday

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A summertime heat wave is on the way for San Diego County and the wave’s peak temps could come close to record highs.

NBC 7 meteorologist Sheena Parveen said it'll be "unseasonably hot" across the county starting Thursday. That heat will peak Friday.

“We’ll see near-record highs across the county,” she explained.

Parveen said relief from the heat for the next few days will be best found along San Diego’s coastline.

"But even along the coast, we're going to be warm," Parveen said.

The weather has been gradually warming up all week, but the main event is slated for Friday.

“If you need to be outdoors, stay extra hydrated and take frequent breaks in the shade!” the NWS tweeted, warning of the warm-up.

The National Weather Service has issued a heat advisory for all of San Diego’s valleys and mountains below 5,000 feet, in effect from 11 a.m. Thursday through 9 p.m. Saturday. Temperatures up to 104 degrees are expected in some areas, the NWS said.

While Friday is expected to be the hottest day, slight cooling may start on Saturday, according to the advisory.

Meanwhile, in San Diego’s deserts, the NWS issued an excessive heat warning, also in effect from 11 a.m. Thursday through 9 p.m. Saturday. Temps are expected to reach a scorching 116 to 122 degrees in San Diego County deserts, Coachella Valley, and San Gorgonio Pass, near Banning, California.

Both Parveen and the NWS said the extreme heat increases the chances of heat-related illnesses, so stay in cool, indoor areas, drink plenty of water, and never leave children or pets alone inside the car. Limit your time outside and reschedule any strenuous activities for early morning or evening.

Parveen said conditions will cool down a bit next week. But, if you're looking to beat the heat over these next couple of days, you can find information on safe Cool Zones across San Diego County here.

Cleveland National Forest said Thursday that it was closing its Three Sisters and Cedar Creek Fall trails due to the heat advisory in the region issued by the NWS. The trails will be closed Thursday through Sunday.

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