Illinois Storm Chasers

| August 9, 2026

Heat Wave – Sunday, August 9th Conditions

(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 today, the

Illinois Storm Chasers

| July 28, 2026

Heat Wave – Tuesday, July 28th Conditions

(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 air will filter into

Illinois Storm Chasers

| July 27, 2026

Heat Wave – Monday, July 27th Conditions

(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 tem

Illinois Storm Chasers

| July 26, 2026

Heat Wave – Sunday, July 26th Conditions

(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 the mid to up

Illinois Storm Chasers

| July 25, 2026

Heat Wave – Saturday, July 25th Conditions

(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 be lim

Illinois Storm Chasers

| July 21, 2026

Heat Wave – Tuesday, July 21st Conditions

(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.High temperatures will climb into

Illinois Storm Chasers

| July 20, 2026

Heat Wave – Monday, July 20th Conditions

(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 index v

Illinois Storm Chasers

| July 20, 2026

Monday/Monday Night, July 20th – Severe T’Storm Episode

(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 init

Illinois Storm Chasers

| July 19, 2026

Heat Wave – Sunday, July 19th Conditions

(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 low 90’s w

Illinois Storm Chasers

| July 18, 2026

Saturday/Saturday Night, July 18th – Severe T’Storm Episode – Update #2

(11:00AM – Saturday, July 18th, 2026)Saturday Morning UpdateThe 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 traili

Illinois Storm Chasers

| July 18, 2026

Heat Wave – Saturday, July 18th Conditions

(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 state.#il

Illinois Storm Chasers

| July 18, 2026

Saturday/Saturday Night, July 18th – Severe T’Storm Episode

(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 th

Illinois Storm Chasers

| July 17, 2026

Heat Wave – Friday, July 17th Conditions

(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 tem

Illinois Storm Chasers

| July 16, 2026

Heat Wave – Thursday, July 16th Conditions

(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 a

Illinois Storm Chasers

| July 15, 2026

Heat Wave – Wednesday, July 15th Conditions

(6:30AM – Wednesday, July 15th, 2026)Heat Wave Continues Today 🌡️Hot temperatures and modestly elevated heat indices can be expected today. The hottest temperatures will once again be across Northern Illinois, where afternoon highs will climb into the low to upper 90’s. Elsewhere across Central and

Illinois Storm Chasers

| July 14, 2026

Heat Wave – Tuesday, July 14th Conditions

(6:30AM – Tuesday, July 14th, 2026)Heat Wave Continues Today 🌡️Hot temperatures will further overspread the state today. The hottest temperatures will once again be across Northern Illinois, where afternoon highs will climb into the low to upper 90’s. Elsewhere across Central and Southern Illinois,

Illinois Storm Chasers

| July 13, 2026

Heat Wave – Monday, July 13th Conditions

(6:30AM – Monday, July 13th, 2026)Heat Wave Begins Today as a Record Upper-Level Ridge Expands into the Region 🔥Hotter conditions will overspread much of the state today as a record-strength upper-level ridge builds further into the Midwest. The hottest temperatures today will be across Northern Ill

Illinois Storm Chasers

| July 5, 2026

4th of July Weekend – Sunday, July 5th Weather Forecast

(12:00PM – Sunday, July 5th, 2026)Afternoon-Evening Fireworks/Fest/Fair/Party Forecast 🎆Heading out to a festival, fair, or a rescheduled fireworks display this afternoon and evening? Hosting a rescheduled party at home this afternoon and evening? Here’s what to expect…The weather across Illinois wi

Illinois Storm Chasers

| July 4, 2026

4th of July Weather Forecast

(9:30AM – Saturday, July 4th, 2026)4th of July Weather Forecast 🎆Mother Nature may decide to put on a fireworks show of her own today… and if you’re hosting a party or heading to a festival, fair, or fireworks display, the weather may leave you scrambling at times!The weather will be very fluid toda

Illinois Storm Chasers

| July 4, 2026

Heat Wave – Saturday, July 4th Conditions

(8:30AM – Saturday, July 4th, 2026)Heat Wave Ends Today 🌡️The week-long heat wave will come to an end across Illinois after today. While the northern half of the state will enjoy noticeably cooler and less humid conditions, hot and humid conditions will linger for one final day across the southern h

Illinois Storm Chasers

| July 3, 2026

4th of July Weekend – Friday, July 3rd Weather Forecast

(2:45PM – Friday, July 3rd, 2026)Evening Fireworks/Fest/Fair/Party Forecast 🎆Heading out to a festival, fair, or fireworks display this evening? Hosting a party at home this evening? Here’s what to expect…The weather will remain very fluid through the rest of today and tonight. An initial round of t

Illinois Storm Chasers

| July 3, 2026

Heat Wave – Friday, July 3rd Conditions

(9:30AM – Friday, July 3rd, 2026)Heat Wave Continues, But Gradual Wind Down Begins 🌡️While the peak of the heat wave has passed, hot and humid conditions will continue across much of Illinois today. However, the slow wind-down begins, with portions of Northern Illinois seeing some improvement compar

Illinois Storm Chasers

| July 2, 2026

Heat Wave – Thursday, July 2nd Conditions

(6:30AM – Thursday, July 2nd, 2026)Heat Wave Peak Lasts One More Day Today 🌡️The peak of the heat wave will continue across Illinois for one more day today, with hot and humid conditions persisting statewide. As we head into Friday and the holiday weekend, the heat wave will continue, but conditions

Illinois Storm Chasers

| July 1, 2026

Heat Wave – Wednesday, July 1st Conditions

(6:30AM – Wednesday, July 1st, 2026)Heat Wave Peak Continues Today 🌡️The peak of the heat wave will continue across the state today, with hot and humid conditions persisting.High temperatures will climb into the low to mid 90’s statewide, perhaps into the upper 90’s in some locations. Peak heat inde