Weekend weather A heat advisory and a warning that has been in effect all week has been extended until Saturday at 8 p.m. as the grueling heatwave continues for San Diego County. Temperatures closer to average for this time of year are expected this weekend. Last week, high temperatures were a round 10-15 degrees above normal. Despite the cool down, Saturday will still be hot, with temperatures only slightly cooler, hence why the alerts were extended. “By Sunday, high temperatures will finally return to normal, though the humidity will keep minimum temperatures around 5 degrees above normal,” the National Weather Service said. Weather next week Expect near-seasonal temperatures to remain steady through next week. There will be a couple tropical systems in the Pacific ocean south of San Diego next week. We could see increased cloud cover and surf from those. Rain chance is even a possibility next week, according to NBC 7 meteorologist Greg Bledsoe. Warm ocean waters Those seeking relief at the beach may be met with some of the warmest ocean temperatures in recorded history. Thursday’s sea bottom temperature tied for the hottest ever recorded on that date at the Scripps Pier La Jolla. The 76.6-degree water was nearly 10 degrees above average, according to Scripps Institution of Oceanography data. Relief is coming on Monday when temperatures are expected to be below average for this time of year, according to the NWS. By mid-week, there may even be some rain from Tropical Storm Karina. How to Stay Cool on Hot Days Cool Zones are open throughout San Diego County and can help keep San Diegans cool. “Cool zones” are free air-conditioned sites where people can gather to beat the heat together. See the nearest location near you below: If you can’t make it to a cool zone, HHSA has other tips for people, particularly older adults, to stay cool on hot days. The agency recommends: Avoiding physical activity during the day and pacing yourself. Instead, plan your exercise between 4 and 7 a.m., typically the coolest part of the day. Staying indoors as much as possible. The coolest floors are the lowest floors. Keep your shades and blinds closed as much as possible with your windows slightly open. Taking a cold shower. Wearing lightweight, light-colored and loose clothes. Never leaving children or pets inside vehicles, even with the windows cracked. Drinking more fluids than usual. Water is best and alcohol or caffeine can make the heat’s effects worse. Find many more tips here. This story uses functionality that may not work in our app. Click here to open the story in your web browser. ...read more read less