Chicago Rain Tapers Off, Cooler Weather Ahead
• Heavy rainfall that impacted the Chicago area overnight is expected to taper off by early afternoon on Sunday, September 20, 2026, according to Fox Chicago Meteorologist Mark Strehl. The rain has caused large puddles and reduced visibility in some areas. A Flood Watch remains in effect for La Salle County until 1 p.m. CDT, and a Beach Hazards Statement is active along Lake Michigan through Tuesday evening due to hazardous swimming conditions. High temperatures are expected to reach the 70s °F (21-26 °C) today, with breezy conditions. The warmest temperatures will be south of Interstate
• Rain is expected to persist into Monday, with cooler temperatures forecasted for the start of the workweek.
Impact & Risks
The heavy rainfall has led to localized flooding and hazardous conditions, particularly in La Salle County, which is under a Flood Watch until 1 p.m. CDT. Additionally, the stormy weather has created dangerous swimming conditions along Lake Michigan, prompting a Beach Hazards Statement through Tuesday evening. Residents and visitors are advised to exercise caution near water bodies and avoid swimming in Lake Michigan during this period.
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