High-Pressure System Due to Nudge Temperatures Up

The weather will warm up slightly today and through the weekend because of a high-pressure front that could bring a weak Santa Ana condition by the middle of next week, forecasters for the National Weather Service say.

The low-pressure system that has hovered over San Diego County most of the summer is weakening and, by Sunday, it will be replaced by a weak high-pressure system that will bring a warming trend, said forecaster Dan Atkin.

The slight warming trend follows on the heels of below-normal temperatures on Thursday. The high for the day was 72 with a low of 63. The normal high is 77 with a low of 66. The high last year on this date was 80 degrees, with a low of 63.

Today and through the weekend, the persistent marine layer will continue to cloud night and morning skies over the coastal areas and inland valleys, Atkin said. The beaches will have only partial clearing this afternoon and Saturday, but sunny skies will break through on Sunday, he said. The inland areas are expected to have mostly sunny afternoons after night and morning clouds, while the mountains and deserts will have mostly sunny skies. No thunderstorms are on the horizon.

Temperatures at the beaches today and through the weekend will range from 67 to 72 with a water temperature of 67 degrees, Atkin said. The surf is rolling in at 1 to 3 feet.

Coastal temperatures will range from 72 to 77, with lows of 60 to 65, and inland highs will reach 75 to 83, with lows of 54 to 62 degrees, Atkin said.

In the mountains, temperatures will range from 68 to 76, dropping to 42 to 50 at night, he said. The mercury in the desert is expected to rise to 96 to 104, falling to 62 to 70 at night.