Slightly cooler than Sunday for the deserts with the San Diego County coast and valleys as much as 5 to 10 degrees warmer. High temperatures for today for the coastal areas: 70 to 75, western valleys and inland Orange County: 73 to 77, inland valleys: 67 to 74, mountains between 4000 ft and 7000 ft: 49 to 59, high desert: 61 to 65, low desert: 73 to 78.