Two Rounds of Severe Weather Target Northern Illinois Including Rockford, Chicago, and Peoria With Damaging Winds, Flooding, and Isolated Tornado Threat From Noon Through 2AM
ILLINOIS — Two separate rounds of severe weather are expected to impact Illinois today, stretching from early afternoon all the way through the overnight hours past midnight. The first round arrives in the form of a squall line developing in eastern Iowa and racing east across northern Illinois between noon and 6 PM, while a second and potentially more complex round follows after 6 PM and continues until around 2 AM.
Round One Noon to 6 PM — Squall Line Brings Damaging Winds Across Northern Illinois
The first round of severe weather will develop as a squall line pushing east out of eastern Iowa and tracking across northern Illinois this afternoon. Damaging winds are the primary hazard with this initial wave, targeting areas including Rockford, Dixon, and the broader northern Illinois corridor.
The squall line is expected to race through the region quickly, but any storms within the line carry the potential to produce significant wind damage. Have outdoor plans adjusted and be weather aware heading into the early afternoon hours.
Round Two 7 PM to 2 AM — Winds, Tornado, Flooding All on the Table
The second round arrives after 6 PM and brings a broader set of hazards. Damaging winds, an isolated tornado, flooding, and hail are all possible with this wave, which will impact areas including Peoria, Macomb, Burlington, Quincy, Springfield, and Champaign through the overnight hours.
Whether this round reaches full severe potential depends on how much atmospheric energy remains after the first wave clears. Those who miss the first round entirely may still face significant severe weather from the second. Round two is expected to exit the area after 2 AM.
Stay Alert Through the Overnight Hours
With storms possible from midday through the middle of the night, this is an all-day and all-night weather awareness situation across Illinois. The overnight timing of Round Two is particularly dangerous as many residents will be asleep when storms arrive.
Ensure weather alerts are active on your phone and have a shelter plan ready well before storms approach your location. Stay with NapervilleLocal.com for the latest weather updates and local forecast coverage.
I’ve lived in Naperville long enough to see how quickly our community changes — from new developments downtown to sudden shifts in our Midwest weather. Reporting on Naperville news and daily forecasts gives me the chance to keep neighbors informed about what really matters. My goal is simple: deliver clear, timely updates so you always know what’s happening in our city and what to expect from the skies above.