OF USERS ON THE SITE TODAY. THERE ARE LIMITS ON THE AMOUNT OF TWEETS YOU ARE ALLOWED TO DO EACH DAY. >>> THE NEWS AT 5:00 START RIGHT NOW. THANK YOU FOR JOINING US. I AM TERRY McSWEENEY. >> THE WEEKEND WARM-UP IS HERE AND IT IS HOT OUTSIDE. THE BAY AREA IS TRIPLE DIGITS ON THIS FOURTH OF JULY WEEKEND. >> OAKLAND AND SAN JOSE, THE SOUTH BAY PART OF CONTRA COSTA COUNTY SEEING THE HIGHEST TEMPERATURES TODAY. THEY HAVE OPENED COOLING CENTERS TO ASSURE EVERYONE HAS A PLACE TO GET OUT OF THE NEAR TRIPLE DIGIT TEMPERATURES. >> THIS IS ALSO IMPACTING B.A.R.T. COMMUTERS. METEOROLOGIST ROB MAYEDA IS TRACKING THIS BAY AREA MANY HEAT WAVE. WE HAVE GOT IT. >> SAN FRANCISCO, YOU NOTICE WHAT IS MISSING CARE. WE MANAGE A HIGH OF 71 DEGREES. BUT HERE IS THE PROBLEM. THE HEAT IS ABSOLUTELY BAKED INTO THE TRYVALLEY AT 108 DEGREES. THE HOTTEST DAY SINCE SEPTEMBER 9th OF LAST YEAR. BY THE WAY, THE HIGH OF 109, THE SAME TEMPERATURE REACHED IN LAS VEGAS, NEVADA, THIS AFTERNOON. ABOUT 21 DEGREES ABOVE AVERAGE IN LIVERMORE. SAN JOSE, SLIGHTLY ABOVE AVERAGE. ONE REGION THAT IS NOT IN THE HEAT ADVISORY, THE BAY. AND MID-90s AROUND DOWNTOWN SAN JOSE AS WELL. LOOK AT THOSE SPREAD OF NUMBERS HERE. FROM 60s NOW, SAN JOSE TO HALF MOON BAY. THE GOOD NEWS THAT WE HAVE IS THAT THERE IS JUST ONE MORE DAY OF THE HEAT ADVISORY FOR THE SAME AREAS EXPERIENCING THOSE 90s AND 100 DEGREE TEMPERATURES. COOLING IS ON THE WAY NOW. WE WILL SEE THE BREEZE PICK UP TOMORROW AFTERNOON. AND FOURTH OF JULY, TEMPERATURES ARE TRENDING ABOUT 20 DEGREES COOLER FROM THOSE INLAND HIGHS. LOOK AT THE COOL DOWN ON THE WAY IN OUR FORECAST. >> WE ARE ALL OVER THAT PLACE. TEMPERATURES MAY NOT BE BREAKING RECORDS, BUT IT MIGHT FEEL THEY ARE AFTER THOSE GRAY SKIES AND THE JUNE GLOOM. >>> LET'S HAVE A LOOK AT HOW FOLKS ARE HANDLING A HOT HOLIDAY WEEKEND. >> Reporter: IT CERTAINLY FEELS LIKE THE HOTTEST DAY AT THE FAIR SO FAR. SOME PEOPLE WE SPOKE TO SAY IT FEELS LIKE A TRADITION TO COME HERE AND THEY HAVE A PLAN FOR THE HEAT. THE ALAMEDA COUNTY FAIR IS WELL ON ITS WAY TO WELCOMING SUMMER VISITORS. BUT THIS WEEKEND, FAIRGOERS ARE GETTING SOMETHING THEY HAVE NOT SEEN YET THIS SEASON, TRIPLE DIGIT HEAT. MAYA MILLAR PICKED UP SOMETHING CALLED RIGHT AWAY. >> I AM FROM OREGON. THIS HAS BEEN PLANNED FOR A FEW MONTHS NOW. WE WERE GOING TO BE HERE WHETHER IT WAS 100 DEGREES OR 70. >> Reporter: FROM PIG RACES TO FOOD, DRINKS, AND RIGHTS, PEOPLE WERE OUT TAKING IT IN. >> LIKE WE MENTIONED, THIS IS TYPICALLY WHAT OUR FAIR LOOKS LIKE. >> Reporter: MEGAN KREIDER SAID HIGH TEMPERATURES ARE NOT TOTALLY UNEXPECTED BUT VISITORS SHOULD HAVE A PLAN. >>, COME HYDRATED BEFORE YOU GET HERE. PAST THE SUNSCREEN, SUNGLASSES, ALL THAT PROTECTIVE EQUIPMENT IF YOU'RE IN THE HARSH SON. >> Reporter: AND AIR- CONDITIONED BUILDINGS. AT THIS TABLE, THEY BROUGHT A LIST OF ITEMS TO STAY COOL, INCLUDING A PORTABLE FAN. >> IT HAS WATER IN IT. SHE HAS GOT HER FAN. >> Reporter: UMBRELLAS WERE ALSO A POPULAR OPTION AS THE THERMOMETER HIT 90 BEFORE NOON CROSSED THE TRYVALLEY. >> PRETTY GOOD. >> Reporter: JAIME FRIDAY IS SPENDING HER THURSDAYS WORKING THE FIREWORKS BOOTH.
