The Pensacola area is under a heat advisory for the second day in a row. A cluster of showers and thunderstorms will offer relief on Wednesday.

The National Weather Service has issued a heat advisory starting Thursday, July 23, and continuing into Friday, July 24.

Temperatures in Milwaukee could reach as high as 94 degrees July 23 with a heat index of 105 degrees, and the heat is likely to stick around tomorrow. The National Weather Service forecasts a high in the low 90s and a heat index of around 100 for July 24.

A heat advisory for Florida's Treasure Coast is in effect from noon through 6 p.m., with heat index values from 109 to 112 possible.

The Southwest Ohio Air Quality Agency has issued an Air Quality Advisory for Butler, Clermont, Hamilton and Warren counties in Ohio; Boone, Campbell and Kenton counties in Kentucky; and Dearborn County in Indiana, until midnight. Levels of ozone within the region may approach or exceed unhealthy standards.

The forecast high in Little Rock for Wednesday and Thursday was 101 degrees, with heat index values nearing 110. It's summer and it's supposed to be hot. But temperatures will run 5-15 degrees above the historical average,

Heat and oppressive humidity will greatly impact your daily routine this week, and First Alert Weather Impact Days have been issued through Thursday due to the excessive heat.

The heat index is expected to hit 105 to 115 degrees in the metro area on Wednesday. The setting sun won't provide much relief — temperatures will likely remain above 90 degrees into the evening hours.