A hazardous weather outlook has been issued for parts of Arizona, including parts of west and central Arizona.
The National Weather Service reports there is a slight chance of thunderstorms tonight, with strong wind, blowing dust and lightning.
The Valley is still under an excess heat warning through 8 p.m. Friday. High temperatures Thursday could reach 114, with 115 to 117 possible on Friday.
Saturday and Sunday could bring continued heat, with temperatures above 110 and a chance of thunderstorms.