Weather in Summit, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:01 PM ET · Refreshes every hour
73°F
Clear sky
Feels like 78°F
69%
Humidity
5 mph
Wind Speed
About Weather in Summit
Summit is located in Illinois (coordinates: 41.788452°N, 87.813921°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.