Weather in Grand Tower, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:10 PM ET · Refreshes every hour
74°F
Overcast
Feels like 78°F
80%
Humidity
7 mph
Wind Speed
About Weather in Grand Tower
Grand Tower is located in Illinois (coordinates: 37.64168°N, 89.506723°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.