Weather
Chicago and Rockford Shatter Heat Records with Hottest Start to September
Chicago and Rockford have shattered heat records, marking their hottest start to September ever. Residents are urged to stay safe as high heat persists locally.
By Erin Vale · 2026-09-05T11:57:31.821Z
Chicago, Illinois – Residents in Chicago and Rockford are navigating historic heat as the region marks the hottest start to September on record. The persistent warmth has pushed local temperatures well beyond previous benchmarks, requiring citizens to remain vigilant about heat related safety through the coming weeks.
According to the National Weather Service , the first four days of September were the hottest ever recorded for both cities. Chicago saw an average temperature of 85.4 degrees, while Rockford experienced an average of 82.5 degrees. These readings surpassed the previous record set in 1960 by 1.4 degrees. While slightly cooler conditions are expected, the agency indicates that temperatures will remain above average throughout the middle of the month.
The data underscores a broader trend of sustained warmth across the region. With summer showing no signs of lessening its grip, residents are encouraged to stay hydrated, limit outdoor exertion during peak sun hours, and check on vulnerable neighbors. Utility providers advise monitoring cooling equipment performance during this extended period of high demand.
Long range outlooks provided by the NOAA NWS Climate Prediction Center suggest the elevated temperatures are likely to continue through mid September. Authorities will continue to monitor the situation and provide updates as the climate patterns shift. For now, plan for continued above normal heat as the region moves through the first half of the month.