Chicago, Illinois – Strong thunderstorms are expected to sweep across northern Illinois between 3 and 11 p.m. Friday, bringing a renewed threat of flash flooding, damaging winds, and even isolated tornadoes.
According to the National Weather Service in Chicago, the most severe impacts are expected east of I-55, where storm cells could rapidly intensify this afternoon. Areas including Chicago, Joliet, and Elgin are under a Level 2 out of 5 risk for severe weather and flash flooding. Forecasters warn that saturated ground from yesterday’s downpours may worsen flood conditions, particularly in low-lying areas, basements, and along streams.
The strongest storms could produce 60+ mph wind gusts, frequent lightning, and large hail. Tornado potential is low but not zero. Travel conditions could become hazardous during the evening commute, especially near and west of I-55 where locally heavy rainfall may reduce visibility and trigger road closures.
Residents are urged to monitor alerts, avoid driving through flooded roads, and charge devices ahead of potential power outages. Keep multiple ways to receive warnings, especially during evening hours.
Storm chances remain elevated Saturday before a drier pattern returns Sunday.
🔹 Five-Day Illinois Forecast
- Friday: Scattered strong storms 3–11 p.m., flash flood risk. Highs 82–91°F.
- Saturday: Storms east of I-55, ending by evening. Highs 82–87°F.
- Sunday: Mostly sunny, cooler near the lake. Highs 80–85°F.
- Monday: Partly sunny, warmer. Highs 86–90°F.
- Tuesday: Dry and seasonable. Highs in the mid-80s.
