The National Weather Service says San Diego is under an extreme heat watch due to a local heat wave.
That will increase temperatures about five-to-10 degrees above average for daytime highs and overnight lows. A heat advisory is in effect for inland valleys and mountains through 10 am Tuesday. After that, the heat will be more widespread.
An extreme heat watch will take over Tuesday morning and continue through Friday night for San Diego County’s coastal areas, valleys, and mountains…