 Now, the latest forecast from the KFNX Penguin Air Plumbing and Electrical Weather Center. I'm meteorologist Jim Bernal. We have an excessive heat warning in effect. For this morning, clear skies, a sunny, hot day today with a high of 114. Clear tonight, low 88. Plenty of sunshine and hot Monday, high 114. Tuesday, sunny and hot, high 114. From the KFNX Weather Center, I'm meteorologist Jim Bernal. Currently, in downtown Phoenix, it's 100 degrees.