(6:30AM – Sunday, September 20th, 2026)
Heat Wave Finale Today!🔥
Today will be the final day of hot and humid conditions across Southern Illinois, marking an end to this heat wave stretch.
For today, high temperatures will range from around 90° to the mid 90’s across a small portion of Central and all of Southern Illinois. Elevated heat index values are expected as well, with peak heat indices of 90-100° expected across a small portion of Central and all of Southern Illinois.
#ilwx #heatwave
