Weather in DeKalb, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:59 PM ET · Refreshes every hour
73°F
Clear sky
Feels like 72°F
39%
Humidity
8 mph
Wind Speed
About Weather in DeKalb
DeKalb is located in Illinois (coordinates: 41.928873°N, 88.746359°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.