 Now, the latest forecast from the KFNX Penguin Air Plumbing and Electrical Weather Center. I'm meteorologist Jim Renaud. We have an excessive heat warning in effect. As we head into the evening, a clear sky, and it will be mainly clear overnight below 86. Plenty of sunshine and hot Friday and Saturday with highs each day 114. Sunday, a sunny hot day with a high of 112. From the KFNX Weather Center, I'm meteorologist Jim Renaud. Currently in downtown Phoenix, it's 108 degrees.