Extreme Heat Expected Again In County Deserts, Cooling Arrives On Friday

The mercury could soar to 112 again Thursday in the San Diego County deserts, but cooler weather will arrive on Friday, according to the National Weather Service. The high pressure that has caused sweltering conditions since Tuesday will be replaced by a low-pressure system, which will also bring a slight chance of rain Friday night through Saturday morning everywhere except the deserts, forecasters said.