St. Louis, MO – Persistent rainfall, heavy at times, is leading to significant flooding in the St. Louis metro area and surrounding Illinois regions, impacting Election Day turnout and causing disruptions on major roadways. Local officials have issued flash flood warnings, urging residents to avoid creeks, streams, and low-lying areas where waters continue to rise. Drivers are advised to exercise caution, as flooded streets, highways, and underpasses are now hazardous, particularly along I-70, I-55, and I-44.
According to the National Weather Service (NWS) in St. Louis, ongoing thunderstorms are expected to bring an additional 2 to 3 inches of rain through Wednesday morning. This intense precipitation could further inundate already saturated areas, elevating risks for flash flooding across southern Madison, Monroe, and St. Clair Counties in Illinois, as well as St. Louis County in Missouri. NWS recommends avoiding all flooded roads and heeding road closures, as even shallow water levels can pose life-threatening hazards.
The flooding has impacted several critical routes, with reported closures and high-water alerts on Interstates 70, 55, and 44, affecting commuter and travel routes. Specific areas of concern include Chesterfield, Florissant, and Belleville, along with several nearby state parks. Local authorities are closely monitoring the situation and cautioning that flash floods may develop swiftly in thunderstorms, making it crucial for residents to stay informed via local weather updates.
The forecast for the coming days shows a slight reprieve by Wednesday afternoon, with rain chances decreasing. However, lingering moisture and saturated grounds mean flash flood risks may persist through mid-week. By Thursday and Friday, St. Louis is expected to see clearer skies with cooler, mild temperatures in the low 60s. Residents are urged to remain vigilant and check local updates frequently for the latest road closures and weather developments.
