
ALT Headline: Threat for Flash Flooding Tonight. Sub Headline: Main time window for flash flooding late this evening through into Sunday morning. What To Expect. Another round of torrential rainfall. May flood roads, low-lying areas, fields, and basements, and cause rapid stream/creek rises. When: Favored Timing of Highest Rainfall Rates. ~7 PM this evening - 6 AM CDT Sunday. Where: Areawide. Highest rainfall amounts and greatest flooding impacts favored across northern Illinois and far northwest Indiana, which aligns with much of the area that experienced heavy rain over the past day. What To Do. NEVER drive or walk across flooded roads! Move valuables from flood-prone areas, such as basements and outdoor areas with poor drainage. Graphic Created: Saturday, September 19, 2026 2:27 PM CDT

ALT This is a five day forecast graphic for northern Illinois and northwest Indiana. Headline: Five Day Forecast. Sub Headline: Rest of the holiday weekend: seasonably warm w/more comfortable humidity Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Sunday, September 6, 2026 2:51 AM CDT

ALT Heat Impacts on Vulnerable Populations. Pregnant: Extreme heat events have been associated with adverse birth outcomes such as low birth weight, preterm birth, infant mortality, and congenital cataracts. Newborns: Newborns are extra sensitive to heat because their ability to regulate body temperature is limited. Children: Young children and infants are particularly vulnerable to heat, as their bodies are less able to adapt to heat than adults. Those under four are especially vulnerable. Elderly: Older adults, especially those who have preexisting diseases, take certain medications, live alone or have limited mobility are at higher risk for heat illness. Chronic Illness: People with chronic medical conditions are more likely to have a serious health problem during a heat wave.

ALT This is a four day forecast graphic for northern Illinois and northwest Indiana. Headline: Four Day Outlook. Sub Headline: Mainly dry and seasonable to end the week… Very warm and humid next week. Visit weather.gov/Chicago for more forecast details for your location. Graphic Created: Thursday, August 27, 2026 1:20 PM CDT





























