Today, light and scattered rain showers passed through the county, totaling less than a tenth of an inch. Most of the shower and thunderstorm activity was focused on Riverside and San Bernardino counties. The heavy downpours from some of these thunderstorms have been beneficial, providing crucial support for firefighters working to manage wildfire activity in the area. Our early season storm system that moved across Southern California today is now positioned near the California-Arizona border. It will continue to exit the region quickly by Saturday, allowing high pressure to build in and shifting the storm track well to the north. Prepare for a lovely and warm weekend as high pressure takes hold. Above-normal temperatures and dry conditions are set to continue through the first week of fall, promising a warm and dry outlook. Enjoy the beautiful weather! Here’s how you can stay safe as heat wave grips San Diego County More on heat: San Diego County Sep 3 Need to cool off? Check out these San Diego County ‘Cool Zones' as dangerous heat heads to SoCal San Diego Jun 22 Here's how you can stay safe as heat wave grips San Diego County Saturday Coast: mostly sunny – low 70s Inland: mostly sunny – mid 70s to low 80s Mountains: sunny – mid to low 70s Deserts: sunny – mid to upper 90s