Heat Wave?

San Diego Heat Wave Moving Out, Cool Temperatures On The Way
By Susan Murphy

While much of the nation was battling snow storms and freezing temperatures, San Diego was basking in the hot sun. A combination of high pressure, low humidity and offshore winds pushed temperatures up to 20 degrees above normal over the past three days.

Many San Diegans beat heat by trading their Ugg boots for flip flops and sweatshirts for swimming suits.

National Weather Service forecaster Michael Watkins said San Diego will feel big changes this week. "The temperatures we’ve experience over the last 24-48 hours will start to be more in the normal range by Tuesday, where the marine layer will start to move in and cause the temperatures to be back to normal – about 15 degrees cooler than the past couple of days," said Watkins.

A low pressure system will bring a 20-40 percent chance for showers this weekend, according to Watkins.

http://www.kpbs.org/news/2010/dec/13/san-diego-heat-wave-moving-out-cooler-temperatures/