(9:00PM Tue, Aug 22nd 2023) Tuesday update regarding a strong and large ridge that is in place across the region, which will continue to bring a period of of hot and humid conditions across the state. These conditions are expected to continue through Friday.

Update…
With this update little to no changes were needed with daily forecasts, as things are on track based on the latest model guidance.

Timing & Location…
•Wed, Aug 23rd: All of Illinois.
•Thur, Aug 24th: All of Illinois.
•Fri, Aug 25th: Northwestern, Central & Southern Illinois.

Impacts…
•Wed, Aug 23rd: High temperatures of 92-101 across all of Illinois, with peak heat indices of 100-123.
•Thur, Aug 24th: High temperatures of 93-104 across all of Illinois, with peak heat indices of 100-123.
•Fri, Aug 25th: High temperatures of 88-101 across Northwestern, Central and Southern Illinois, with peak heat indices of 95-117.