As high pressure continues to expand west, temperatures will be hot for the inland valleys and foothills. A heat advisory has been issued for the inland areas of San Luis Obispo and Santa Barbara Counties through 9 p.m. Thursday. During this time, daytime highs will be from the mid-90s to 106 degrees. This heat can have dangerous impacts, so it's important to drink plenty of water, stay indoors during peak daytime hours, check on relatives and neighbors. The warm inland valley temperatures will continue through at least Thursday before they start to cool off by the weekend.
It will be another foggy commute for much of the coastal regions in San Luis Obispo and Santa Barbara Counties. So much so, that a dense fog advisory will remain in place through 8 a.m. Wednesday. Visibility will be about a 1/4 mile or less for the most part, but there could be zero visibility throughout the Central Coast for Highway 101 and Highway 1. Much of the fog and marine layer could be stubborn to clear again along the coast Wednesday, resulting in daytime highs mostly in the 60s. Once the fog clears for the coastal valleys, expect partly cloudy skies by the afternoon.
It will be breezy Wednesday, but northwesterly winds will be moderate and from 10-20 miles per hour.