RIVERSIDE (CNS) - Seasonal temperatures will continue today throughout Riverside County, but conditions will heat up quickly and the region is expected to see highs well into the triple digits this weekend, according to the National Weather Service.High pressure centered over New Mexico and Arizona will strengthen and expand starting Friday and continuing through Sunday, forecasters said.Triple-digit heat is expected in the Riverside metropolitan area, the San Gorgonio Pass near Banning and the Coachella Valley from Friday through Sunday, forecasters said. Highs in the Coachella Valley could soar to 119 degrees on Sunday, while the mercury in the Riverside metropolitan area could reach 106.The NWS issued an excessive heat watch that will last from Saturday morning through Monda
