Weather in Granite City, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 07:14 PM ET · Refreshes every hour
79°F
Clear sky
Feels like 78°F
45%
Humidity
7 mph
Wind Speed
About Weather in Granite City
Granite City is located in Illinois (coordinates: 38.729283°N, 90.125472°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.