The temperature in San Jacinto reached 99 Tuesday, breaking previous record for May 26 of 96 set in 2014, the National Weather Service reported.

Records have been kept since 1948. The seasonal average for the city this time of year is 85, according to the NWS.

While triple-digit temperatures arrived as expected in the Coachella Valley on Tuesday, the blazing conditions did not set any new records.

Palm Springs had its hottest day of the year with a 111-degree high, three degrees lower than the record for this date set in 1951. The seasonal average for Palm Springs is 96, according to the NWS.

The high at UC Riverside was 93 degrees, 97 at Riverside Airport, 93 at Beaumont 93 and 98 at Hemet.

Building high pressure over Southern California will keep temperatures hot throughout Riverside County until Friday, with Wednesday and Thursday expected to be the hottest days of the week in desert areas, forecasters said.

The NWS issued an excessive heat warning that will be in effect through 7 p.m. Friday in the Coachella Valley and the San Gorgonio Pass near Banning.

Cooler temperatures are expected to arrive throughout Riverside County this weekend.

Highs in the Riverside metropolitan area will remain in the mid- to high-90s until Thursday. By the weekend, the Riverside Metropolitan area could dip below 90 degrees, while the Coachella Valley is set to drop to between 100 and 104, the NWS reported.

The NWS urged residents to drink plenty of fluids, stay out of the sun and check on relatives and neighbors.

Young children and pets should be never be left unattended in a vehicle, with car interiors able to “reach lethal temperatures in a matter of minutes,” according to the NWS.

Nighttime lows are expected to remain in the low- to mid-70s through Friday in the Coachella Valley, meaning the minimal cooling at night could pose a health risk to those without access to air conditioning because the body needs time to cool down from the day’s heat.

The high temperatures typically trigger the opening of cooling centers, which include libraries and senior centers where people can escape the peak daytime heat. However, they are not able to be opened because of various restrictions related to the coronavirus outbreak.

Senior citizens can dial 211 to be informed of services available.

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