(9:30AM – Monday, August 18th, 2025) Hot and humid Monday, as heat wave nears and end…
Timing…
•Monday, August 18th
Location…
•A large portion of Illinois.
Discussion…
•The ongoing heat wave will re-surge a bit across the state on Monday, as it nears an overall end. Across a large portion of the state, high temperatures today will generally range from the upper 80’s to the upper 90’s, with heat index values of 96-110° common. It should be noted…With rain/t’storm activity expected portions of the state, high temperatures/peak heat index values may differ a bit than depicted.