Illinois Approaching Record Number of Tornadoes This Year

Illinois is on track to record its highest number of tornadoes in state history this year, with meteorologists warning that June 2026 has already seen a surge in severe weather that outpaces previous annual totals. As of June 17, the state has documented at least 42 confirmed tornadoes, surpassing the previous record of 39 set in 2020, according to the National Weather Service (NWS) Chicago office. Experts attribute the spike to a combination of unusually warm, moist air from the Gulf of Mexico colliding with a persistent jet stream pattern that has fueled repeated outbreaks of thunderstorms.

The NWS confirmed that the majority of this year’s tornadoes—28 of the 42—have occurred in just the last 30 days, a rate that far exceeds the state’s average of 12 to 15 tornadoes annually. “We’re seeing a pattern that resembles what we’d typically expect over an entire season, but compressed into a few weeks,” said Mark Johnson, a meteorologist with the NWS, in an interview with ABC 7 Chicago. “The instability in the atmosphere is off the charts for this time of year.”

Among the most destructive storms was a confirmed EF-3 tornado that tore through parts of Whiteside County on June 12, causing significant damage to homes and infrastructure. The NWS later classified it as one of the strongest tornadoes recorded in Illinois this year, with winds estimated at 165 mph. Emergency management officials in Whiteside County reported at least seven injuries and widespread power outages affecting over 10,000 residents, according to a statement from the Illinois Emergency Management Agency (IEMA).

Governor J.B. Pritzker declared a state of emergency for six northern counties—Whiteside, Winnebago, Boone, Ogle, Lee, and DeKalb—following the June 12 outbreak. The declaration activated the Illinois National Guard to assist with debris removal and power restoration. “This is unprecedented in modern times,” Pritzker said in a press conference. “We’re asking residents to remain vigilant and follow all safety guidelines as we head into what could be another volatile week.”

Meteorologists warn that the risk of additional tornadoes remains elevated through at least June 20, with the NWS issuing a high-risk severe weather alert for central and northern Illinois on June 18. The alert covers an area where conditions are expected to be particularly favorable for tornado formation, including parts of Chicago’s northern suburbs. “People in these areas should have a plan in place and be ready to act quickly if warnings are issued,” Johnson cautioned.

Historically, Illinois ranks among the top states for tornado activity in the U.S., particularly in what’s known as “Dixie Alley,” a region where tornadoes are more frequent and often more violent than in “Tornado Alley” to the west. However, the concentration of tornadoes this year has been unusual even by Illinois standards. The state’s previous record of 39 tornadoes in 2020 was spread across the entire year, whereas this year’s total is being approached by mid-June.

Experts are divided on whether climate change is directly responsible for the surge, though they agree that warmer global temperatures are likely contributing to the intensity of severe weather events. “What we’re seeing aligns with projections that extreme weather events will become more frequent and severe,” said Dr. Sarah Bennett, a climate scientist at the University of Illinois at Urbana-Champaign. “But tornadoes are inherently difficult to predict, and we can’t attribute this specific outbreak solely to climate change without further study.”

The Illinois Department of Public Health (IDPH) has urged residents to review tornado safety protocols, emphasizing the importance of having a designated shelter space, a NOAA weather radio, and a emergency kit. “The best way to stay safe is to be prepared before severe weather strikes,” said IDPH Director Dr. Ngozi Ezike in a statement. “We’ve seen too many lives lost in past events because people didn’t act quickly enough.”

As of June 17, no fatalities have been reported in connection with this year’s tornadoes, though the NWS has noted that several storms occurred in rural or less-populated areas where damage assessments are still ongoing. Officials are urging residents to report any unconfirmed tornado sightings or damage through the NWS’s online portal or by calling the agency directly.

For those affected by recent storms, the Illinois Emergency Management Agency (IEMA) has set up recovery centers in Whiteside and Winnebago counties, offering assistance with temporary housing, debris removal, and mental health support. Residents can access resources by visiting IEMA’s official website or calling 1-800-782-7899.