Map of forecast low temperatures for Saturday and Sunday, Nov 16-17, 2024. Below average temperatures for all areas. For the coastal areas: 44 to 51, western valleys and inland Orange County: 42 to 45, inland valleys: 37 to 44, mountains between 4000 ft and 7000 ft: 21 to 34, high desert: 29 to 35, low desert: 41 to 50.