Weather in Mattoon, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:58 PM ET · Refreshes every hour
76°F
Clear sky
Feels like 77°F
58%
Humidity
9 mph
Wind Speed
About Weather in Mattoon
Mattoon is located in Illinois (coordinates: 39.477833°N, 88.362225°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.