Chicago, Illinois – Illinois residents can expect a calm, summer weekend before thunderstorms roll back into the state starting Tuesday afternoon, with a higher risk of widespread storms by Wednesday.
According to the National Weather Service Chicago, temperatures will stay seasonable through Sunday, ranging from the upper 70s near the Indiana lakeshore to the upper 80s inland. A 20% chance of isolated storms exists near and south of US-24 Sunday afternoon, but most areas will remain dry. Monday will be hot and sunny, with highs reaching up to 90°F.
By Tuesday, rain and thunderstorm chances increase to 30%, primarily in the afternoon. That threat jumps to 60% on Wednesday as a more widespread system moves through, potentially bringing heavy downpours and lightning to the Chicago metro and surrounding counties.
Drivers should stay alert for changing road conditions next week, especially during evening commutes. Residents should also check sump pumps and secure outdoor items ahead of potential storms. While no severe weather is currently expected, updates may be issued as conditions evolve.
More storm chances are expected midweek, with rain likely continuing into Wednesday night.
☀️ Five-Day Forecast for Northern Illinois:
- Saturday Night: Partly cloudy, lows 59–70°F
- Sunday: Isolated PM storms south of US-24, highs 81–85°F
- Monday: Hot and sunny, highs 86–90°F
- Tuesday: Afternoon storms possible (30%), highs 85–89°F
- Wednesday: Widespread thunderstorms (60%), highs 84–89°F
