St. Louis, Missouri – Severe storms could sweep across eastern Missouri and western Illinois by Thursday night, threatening the St. Louis metro with hail, damaging winds, and travel delays.
According to the National Weather Service in St. Louis, thunderstorm chances increase Thursday evening through Saturday, with potential for large hail and gusts over 40 mph. Storms are most likely to develop after 7 p.m. Thursday, affecting key corridors including I-70, I-64, and U.S. Route 40.
Cities at greatest risk include St. Louis, Florissant, Arnold, and Columbia, Illinois. Emergency officials may activate trained spotters if storms intensify, and residents are urged to review safety plans, charge devices, and limit outdoor activity Thursday night.
Until then, the region enjoys classic early summer weather. Monday through Wednesday remain dry, with sunny skies and highs climbing to the upper 80s. But increasing humidity on Thursday signals a shift toward unstable conditions.
This potential storm pattern mirrors past early June outbreaks, where isolated but intense cells brought tree damage and power outages to both sides of the Mississippi River.
If you live in eastern Missouri or the Metro East, monitor updates closely and stay alert Thursday night through Saturday.
🌤️ 5-Day Weather Snapshot for Eastern Missouri & Western Illinois (June 9–June 14):
- Monday (June 9): Mostly sunny, high 81°F. Calm conditions.
- Tuesday: Sunny, high 82°F. Overnight low near 62°F.
- Wednesday: Sunny, high near 88°F. Partly cloudy overnight.
- Thursday: Mostly cloudy, high 87°F. Storm risk rises after sunset.
- Friday: 40% chance of thunderstorms. High 86°F.
- Saturday: Storms likely. High near 86°F.
