RIVERSIDE (CNS) – Palm Springs tied a high temperature record for the date when it hit 106 degrees on Tuesday, and the mercury is expected to rise even higher today, according to the National Weather Service.

Building high pressure will keep temperatures hot today throughout Riverside County and highs in the Coachella Valley could reach 108, forecasters said. A cooling trend will follow, with highs expected to be back below triple digits in the Coachella Valley on Saturday.

An excessive heat warning for the Coachella Valley is in effect until 9 p.m. Thursday.

Nighttime lows are expected to remain in the low- to mid-70s through Thursday 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, according to the weather service.

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

High temperatures elsewhere today are forecast to reach 93 in the San Gorgonio Pass near Banning, 90 in Hemet, 89 degrees in Riverside and Lake Elsinore, 82 in Temecula and 81 in Idyllwild.

Temperatures in the Riverside metropolitan area will be in the mid- to high-80s on Thursday and remain around there through Saturday.

Palm Springs tied a heat record for April 28 when it hit 106 degrees on Tuesday, according to the NWS. The mercury also hit 106 in Palm Springs on that date in 2013, 2007 and 1992.

A record for April 28 was set in Idyllwild where the high reached 92 degrees, erasing the previous record of 85 set in 2007.