Wintry weather and frost are expected Wednesday morning in parts of San Diego County.
A National Weather Service frost advisory for the valleys and deserts is scheduled to expire at 8 a.m. Wednesday. Early morning temperatures were forecast to be 27 to 35 degrees.
"Clear skies and light winds this morning will once again allow temperatures to fall to near the freezing mark or below across portions of the inland valleys and lower deserts," according to the weather service.
Forecasters urged residents to cover sensitive outdoor vegetation and bring pets inside. Farm animals should be placed in barns.
Although the mornings will still be chilly, forecasters said a slow warming trend would begin Wednesday. However, temperatures are not expected to get a whole lot higher than the average for this time of year.
Highs Friday through Sunday are forecast to be in the mid-40s to low 50s in the mountains, in the upper 50s to mid-60s in the deserts, in the mid-60s in the western valleys, in the mid- to upper 50s near the foothills and in the 60s along the coast.
