Forecasters predicted a warming trend this week in Riverside County with some areas returning to the triple digits.
Sunday highs were expected to reach 100 degrees in the Coachella Valley and at least 90 in downtown Riverside and the Temecula Valley, with evening lows of 75 in the Coachella Valley, and 64 in the Temecula Valley and downtown Riverside areas, according to the National Weather Service.
The warming is expected to continue Monday, with daytime temperatures up to 9 degrees above the seasonal averages, the NWS reported.
On Monday temperatures in the Inland Empire were expected to range from the lower to upper 90s while temperatures in the deserts were expected to return to the low triple digits.
Forecasters predicted temperatures will be marginally lower from Wednesday to Saturday with only slight variations day-to-day. The Coachella Valley was expected to linger around 105 degrees while the Riverside metropolitan area was expected to remain in the low 90s and the Temecula Valley was expected to remain in the high 80s.
Evening lows throughout the week were expected to drop to the low 60s in the downtown Riverside area, high 50s in the Temecula Valley and mid-70s in the Coachella Valley, according to the NWS.