Weather in Chester, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 05:04 PM ET · Refreshes every hour
76°F
Overcast
Feels like 77°F
66%
Humidity
9 mph
Wind Speed
About Weather in Chester
Chester is located in Illinois (coordinates: 37.925757°N, 89.827704°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.