Chicago, Illinois – Rain chances creep back into the Chicago area Sunday, July 20th, as a warm, humid air mass triggers afternoon storms. Drivers using I-55 and I-290 should prepare for potential wet pavement and gusty winds starting mid-afternoon.
According to the National Weather Service, a 30% chance of showers and thunderstorms is expected Sunday, mainly after 3 p.m., with highs near 71°F. North-northeast winds may gust as high as 25 mph. While rainfall amounts will be light, isolated downpours could reduce visibility and slow traffic across Cook and DuPage Counties.
By Monday, skies clear and temperatures rebound, hitting 79°F under mostly sunny conditions. But the calm won’t last — a midweek heat wave surges in by Wednesday with a high near 95°F. Overnight lows remain muggy in the mid-70s, limiting overnight relief. Utility companies urge residents to conserve energy during peak hours and stay hydrated as heat builds.
Tuesday and Wednesday look dry but hot, especially across urban corridors where pavement temps may exceed 100°F. Heat-sensitive groups, including children and older adults, should avoid prolonged outdoor exposure midweek.
Looking ahead, storm chances return by Thursday night into Friday, July 25th, as another system approaches. Rain could interrupt evening commutes late week.
⚠️ What’s Next: Showers may linger Thursday night into Friday. Additional advisories are possible if heat or storms intensify.
🌤 Five-Day Forecast: July 20–25 (Chicago, IL)
- Sunday: Slight chance of storms after 3 p.m.; high 71°F
- Monday: Mostly sunny; high 79°F
- Tuesday: Mostly sunny; high 86°F
- Wednesday: Hot and sunny; high 95°F
- Thursday: Sunny early, chance of storms overnight; high 89°F
- Friday: Chance of storms; high 84°F
