Weather in Johnston City, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:15 PM ET · Refreshes every hour
78°F
Partly cloudy
Feels like 84°F
66%
Humidity
3 mph
Wind Speed
About Weather in Johnston City
Johnston City is located in Illinois (coordinates: 37.821035°N, 88.929295°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.