SAN DIEGO - Blustery conditions are in store for most of San Diego County Wednesday, with temperatures in the valleys and deserts starting out in the 20s and low 30s Wednesday morning, forecasters said.

A frost advisory will be in effect for valley and desert areas until 9 a.m. The National Weather Service also scheduled a wind advisory for the valleys and mountains until 10 p.m. Thursday, saying top local gusts will reach
55 miles per hour or more Wednesday.

"Northeast to east winds will subside by late Thursday night, becoming locally breezy through early next week," according to an NWS advisory.

"Warmer conditions tonight through the weekend will mitigate frost chances."

Highs Wednesday are expected to top out in the mid-60s in coastal areas, mid-to high 60s in the western valleys, high 50s to low 60s near the foothills, mid-40s to mid-50s in the mountains and in the high 50s to low 60s in the
deserts.