Another day of uncomfortable heat and humidity with highs near 90 and heat indices near 100 at times. There will be plenty of hazy sun from central and southern Indiana while some high clouds increase to the north.
We'll be monitoring central and northern Illinois for storm development this afternoon. While there will be many dry hours today we're also noticing a better lifting mechanism in that region for storms to emerge and slowly track east-southeastward.
It should be noted that regardless of coverage today anything that develops has flash flooding potential due to the high moisture content in the atmosphere. Stay alert for this threat and don't drive through water-covered roads.
Rain and storm chances are maximized Wednesday with the arrival a cold front and rain tomorrow will be heavy at times. This front delivers a refreshing air mass Wednesday night into Thursday night when temperatures drop into the 50s and lower 60s.
This change arrives just in time to start the Labor Day weekend with some of the best weather across the country. After Saturday we're back to warming up and highs near 90 degrees Sunday into Tuesday of next week - Sean Ash