We have heat advisories and excessive heat warnings for most of the NBC26 viewing area this evening. The hottest day of this latest heat wave is today, High temperatures will rise into the lower to mid 90s and then when you couple that with the high humidity levels, it will feel well into the 100s. Keep in mind that the heat index is what it feels like outside in the shade. If you are under the sun, expect the heat index to be as much as 15 degrees hotter. Tonight our attention turns to the potential for severe thunderstorms moving in from Northwest Wisconsin. This has the capability of hail, damaging winds, and a tornado threat. A cold front is going to move in on Saturday bringing more thunderstorms to the area but more importantly, giving us some relief from the heat and humidity. High temperatures on Saturday will be in the upper 70s to mid 80s. Temperatures will fall into the upper 70s and lower 80s from Sunday through early next week.