Record-breaking weekend looks likely

TUCSON - Excessive Heat Warning will go into effect at 10 AM this morning for Tucson, Sells, Green Valley, Vail, Clifton and Safford with the rest of Southern Arizona, below 5,000 feet, joining in tomorrow morning. A record-breaking weekend is looking likely as temperatures climb to about 114° on Sunday. Today: Hot and mostly sunny (10%). High: 108°Tonight: Clear and warm. Low: 80°Tomorrow: HOT! Limit time outdoors and stay hydrated. High: 111°Storm