Wildflowers in the Borrego Badlands
Wildflowers in the Borrego Badlands. Courtesy Anza-Borrego Desert Research Center

High pressure to the south will influence the weather through Wednesday with a shallower marine layer, fewer low clouds and generally higher daytime temperatures, particularly inland, forecasters said.

High temperatures Tuesday are expected to reach 66 to 69 near the coast, 71 inland, 71 to 75 in the western valleys, 75 to 80 near the foothills, 75 to 85 in the mountains and 100 to 103 in the deserts, according to the National Weather Service.

A low pressure trough moving inland to the north on Wednesday could slightly deepen the marine layer and bring minor cooling, mainly west of the mountains.

From Thursday through the weekend, only minor day-to-day changes are expected with high temperatures about 5 degrees above average for the deserts and slightly below average for the coast and valleys.

The marine layer will be around 2,500 feet with low clouds spreading inland into portions of the valleys during nights and mornings.

Gusty southwest to west winds will affect the mountains and deserts each late afternoon through late evening with the strongest gusts reaching 25 to 35 mph.