As per reports, heavy rainfall is affecting parts of Illinois, leading to a flood warning in effect until 1800 hours (local time) on Friday (31 January) and a flood watch in place until 1500 hours (local time) on Friday (31 January) for most of the area.

• The ongoing precipitation is expected to cause rising water levels in creeks and streams, with urban flooding likely, particularly in areas with poor drainage. Additionally, standing water may persist on non-paved surfaces due to frozen soil conditions.
• Affected locations include Chicago, Arlington Heights, Evanston, Schaumburg, Palatine, Skokie, Des Plaines, Mount Prospect, Hoffman Estates, Glenview, Buffalo Grove, Bartlett, Streamwood, Hanover Park, Wheeling, Park Ridge, Northbrook, Elk Grove Village, Niles, and Highland Park.
• Rainfall is expected to decrease later on the afternoon of Friday (31 January), with rainfall shifting south and east. Most areas will begin drying out by sunset. Throughout the day, temperatures will remain between the 30s and near 40 degrees Fahrenheit.
• On Saturday (01 February), mostly cloudy conditions are expected with highs in the upper 30s, while on Sunday (02 February), temperatures are expected to be notably warmer, with temperatures potentially reaching 50 degrees Fahrenheit, nearing the 52-degree Fahrenheit record high for the date. There is a slight chance of precipitation early Sunday (01 February) morning near the Wisconsin border.