(10:30AM – Saturday, July 25th, 2026) Short Heat Wave Begins Today 🌡️ A brief – three day heat wave will begin impacting portions of the state, as a push of hot temperatures, high humidity and elevated heat indices move in. For today, hot temperatures and elevated humidity/heat index levels will…
(9:30AM – Tuesday, July 21st, 2026) Final Day of Heat & Humidity in This Stretch Today 🌡️ While a cold front has swept across much of the state, Southern Illinois has remained ahead of it, setting the stage for one final day of hot and humid conditions in this stretch….
(9:30AM – Monday, July 20th, 2026) Heat & Humidity Resurge Return Today 🌡️ Ahead of a passing storm system, hot and humid conditions will resurge across portions of Illinois today. High temperatures in the upper 80s to mid 90s will be common across Western and Southern Illinois, where peak heat…
(11:00PM – Sunday, July 19th, 2026) A severe weather threat is possible across a large chunk of the state on Monday/Monday night, with potentially two rounds of activity being possible. However, it should be noted that there is currently uncertainty on the exact evolution. There are signs that an initial…
(9:30AM – Sunday, July 19th, 2026) While the main heat wave that impacted portions of the state this past week has now come to an end, hot temperatures and slightly elevated heat indices will still be common across portions of Illinois today. High temperatures ranging from the upper 80’s to…
(11:00AM – Saturday, July 18th, 2026) Saturday Morning Update The forecast remains on track, with no changes needed with this update. An isolated severe weather threat continues to be expected across a large chunk of the state for today/tonight. As a storm system moves through the Great Lakes, a trailing…
(6:30AM – Saturday, July 18th, 2026) Heat Wave Continues Today 🌡️ High temperatures ranging from the upper 80’s to mid 90’s can be expected across much of the state. Humidity levels will increase a bit, leading to slightly elevated peak heat index values ranging from 95-104 across much of the…
(11:00PM – Friday, July 17th, 2026) A severe weather threat is expected across a chunk of the state on Saturday/Saturday night. As a storm system moves through the Great Lakes, a trailing cold front will sweep across the state on Saturday/Saturday night. A broken line of t’storms will develop along…
(6:30AM – Friday, July 17th, 2026) Heat Wave Continues Today 🌡️ New day, same story… Hot temperatures and manageable heat indices will continue across Illinois today. As has been the case throughout this stretch, the hottest temperatures will once again be found across Northern Illinois, where high temperatures will climb…
(6:30AM – Thursday, July 16th, 2026) Heat Wave Continues Today 🌡️ Hot temperatures and modestly elevated heat indices can once again be expected today across portions of the state. As has been the case over the past few days, the hottest temperatures will once again be across Northern Illinois, where…
