(7:30AM – Sunday, August 9th, 2026) Multi-Day Heat Wave Begins Today 🌡️ A ridge flexing into the region will not only bring an active weather pattern, with t’storm and severe weather chances across the state in the coming days, but also hot and humid conditions for portions of Illinois. For…
(6:30AM – Tuesday, July 28th, 2026) Final Day of the Heat Wave Today 🌡️ We’ve reached the final day of the current heat wave, with one more day of hot temperatures and oppressive heat indices expected across portions of the state. Behind a passing cold front, cooler and less humid…
(10:30AM – Monday, July 27th, 2026) Heat Wave Continues Today 🌡️ Hot temperatures and oppressive heat indices will once again be likely across the state today as the heat wave continues. High temperatures in the low to upper 90s are expected across much of Illinois. However, t’storms will help keep…
(5:30AM – Sunday, July 26th, 2026) Brief Heat Wave Expands Today 🌡️ Hot temperatures and oppressive heat indices will expand across the state today as a brief heat wave continues. High temperatures in the upper 80s to low 90s will be common across much of Illinois, with hotter readings in…
(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…
