Our Excessive Heat Warning will expire this evening. The intense heat will not stop, but we are going to take the edge off in the next couple of days. That doesn't mean we won't be hot, but a heat index around 105 is much easier to handle than a heat index of 115. That will be our reality Wednesday through Saturday.
Our heat relief starts with scattered showers and thunderstorms on Wednesday. A cold front will help make that happen. Don't expect much cooling with that cold front. What will happen, however, is the humidity will drop. It will still be high, but the drop will be noticeable. It will help to take off the edge of the blistering heat index.
Temperatures will warm from upper 70s Wednesday morning to mid-90s Wednesday afternoon. Heat indices will climb to 105-110. Those scattered showers and thunderstorms will develop starting between noon and 2 PM. Some of the storms can be heavy, and remember lightning is extremely dangerous even from non-severe thunderstorms. The storms can cool us into the upper 70s and lower 80s, but we will still be hot away from the storms. The showers and storms will wind down between 6 PM and 8 PM.
A dry spell will set up for Thursday through Saturday. Temperatures will climb again through the 90s with heat indices of 100-105 in the afternoons. Showers and thunderstorms will return Sunday through Tuesday. The heat will finally break, and our high temperatures will ease back to the upper 80s and lower 90s.