A brief break arrives today as clouds and isolated showers help keep Valley highs near 109 degrees. But the relief will not last: Tuesday could reach 114 degrees, threatening Phoenix’s 2011 record of 113. Wednesday is forecast to be the week’s hottest day at 116 degrees, with more record-challenging heat expected Thursday. An Extreme Heat Warning remains in effect through Saturday, while an ozone-related Air Quality Alert affects the Valley and central Arizona on Tuesday. A small rain chance returns late next weekend into early next week as the weather pattern shifts.
