Cooler weather is expected in San Diego County this week, with temperatures dropping more than 20 degrees by Wednesday, forecasters said today.
First, San Diegans will need to get through a few more days of stifling heat.
An excessive heat warning remained in effect for the inland valleys and a heat advisory remained in effect for the coast until at least 8 p.m. Monday. The areas have been under the same warnings since mid-last week.
Sunday's temperatures were in the upper 80s and 90s near the coast, 96 degrees in downtown San Diego and close to triple-digits a few miles inland.
Get top local stories in San Diego delivered to you every morning. Sign up for NBC San Diego's News Headlines newsletter.
The unstable weather pattern was also creating potential thunderstorm weather above San Diego County's mountains Monday afternoon, forecasters said.
A flood advisory was issued Sunday afternoon due to brief heavy rainfall affecting some parts of the county. Minor flooding in low-lying and poor drainage areas was expected in Ramona, Valley Center, Escondido, San Pasqual, San Pasqual Indian Reservation and Rincon Indian Reservation.
Conditions will slowly cool this week, with downtown highs dropping to 84 on Tuesday and 75 on Wednesday, according to current forecasts.
Mountain areas were also experiencing extreme heat Sunday, with more bearable weather expected by Wednesday. Gusty winds could affect the area Tuesday through Wednesday.
Monday's San Diego surf forecast includes a low-risk rip current, with surf height from 1 to 3 feet, and a mixed south swell from 200 degrees and west swell from 280 degrees.
Slight cooling will occur Monday, but temperatures will remain 10-15 degrees above normal. Much cooler Tuesday onward,'' the NWS said.
No hazardous marine weather conditions are expected through Thursday.
