San Diego County will start to cool off Friday and conditions will be drier following a week of hot and humid weather.
The high-pressure system that has been the driving force behind the hot, sticky conditions this week will make its way east Friday and give way to a trough of low pressure moving in from northern California over the weekend, according to the National Weather Service.
High temperatures Friday could reach 90 degrees near the coast and inland, 96 in the western valleys, 94 in the mountains and 112 in the deserts.
Temperatures are expected to drop sharply on Sunday, with highs in the western valleys set to top out at 83 degrees and highs in the deserts expected to drop to 105, forecasters said.
Conditions will remain around the same through the middle of next week when a high-pressure system is expected to move in from the south and cause temperatures to warm heading into next weekend.
