Summer Arrives With Right Stuff

Today is the longest day of the year, the summer solstice, with sunrise at 5:41 a.m. and sunset at 8 o’clock tonight. But the pleasant June weather won’t change much with summer’s arrival: Forecasters predict more of the same for the weekend.

A low-pressure system that brought slight cooling and increased morning cloudiness to San Diego County on Thursday is expected to influence weather through Sunday.

According to National Weather Service forecasters, temperatures will continue close to the June average. Highs at Lindbergh Field and the coastal strip will be between 69 and 73 degrees during the day, and 60 to 65 at night.

Temperatures at the beach may rise to 70 after persistent morning fog clears in the afternoon. The ocean water temperature should hover between 65 and 68 degrees.

Clouds are expected to burn off by late morning in inland valleys, where highs in the 74 to 84 degree range are expected with lows from 55 to 61 at night.

Sub-tropical clouds in Sonora, Mexico, may move north to dot mountain and desert skies in San Diego County, but otherwise sunny days are expected through the weekend.

Mountain temperatures are expected to fall from daytime highs in the 70s to the 55 to 65 degree range at night. Desert highs between 102 to 109 will fall to lows from 66 to 76.

Relative humidity in all areas should continue at the June norm, with about 70% humidity at the shore, 50% along the coastal strip and 45% to 53% inland.