August 18, 2025

(11:30AM – Monday, August 18th, 2025) Severe t’storm threat Monday/Monday night.. Timing & Location…•Monday Midday – Tuesday Morning, August 18-19th: Northern & Central Illinois. Impacts…•A level 1 to 2 severe t’storm threat is in place across Northern and portions of Central Illinois, for the threat of isolated to widely scattered…

(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,…