Our late summer heat wave peaks the next couple of days with highs in the low to mid 90s Wednesday and Thursday. Higher humidity will push the heat index into the mid to upper 90s, just shy of a heat advisory in the Bluegrass. A heat advisory is in effect for far western counties through Thursday evening. Stay hydrated and don't overdo it outside during the peak heat of the day. A cool front will drop south and take the edge off of the heat to start the weekend.