Weather in Marion, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:05 PM ET · Refreshes every hour
76°F
Overcast
Feels like 80°F
69%
Humidity
3 mph
Wind Speed
About Weather in Marion
Marion is located in Illinois (coordinates: 37.734445°N, 88.941164°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.