The last week of October is bringing the heat as offshore winds and high pressure combine to push the mercury upward through midweek.
Inland valleys remain under a heat advisory until 7 p.m. Wednesday, according to the National Weather Service.
Santa Ana winds will create gusty conditions along coastal mountain slopes with localized gusts reaching 25 to 35 mph Wednesday morning, the NWS said. The offshore flow will also suppress the marine layer, limiting low clouds and fog to areas right along the coast.
High temperatures Wednesday are expected to reach 78 to 83 near the coast, 87 to 92 inland, 90 to 95 in the western valleys, 76 to 86 in the mountains and 89 to 92 in the deserts.
Relief from the warmth arrives Thursday afternoon when onshore flow returns, ushering cooler air inland by Friday just in time for Halloween. The shift will also bring back the region’s typical night and morning coastal fog.
Weekend temperatures are forecast to tick up a few degrees before a cooling trend takes hold early next week as the high pressure system weakens, meteorologists said.
