Not much change from Wednesday near the coast to around 5 degrees cooler for the mountains and deserts. High temperatures for Thursday for the coastal areas: 63 to 68, western valleys and inland Orange County: 66 to 70, inland valleys: 66 to 73, mountains between 4000 feet and 7000 feet: 56 to 68, high desert: 73 to 80, low desert: 85 to 89.