Average temperature in DeKalb (IL)
The mean minimum and maximum temperatures over the year in DeKalb (Illinois), the United States of America.
- The months of May, June, July, August and September have nice average temperatures.
- Cold season / winter is in the months January and February.
- On average, the warmest month is July with 28°C.
- On average, the coolest month is January with -2°C.
- The average annual maximum temperature is 14°C.
- The average annual minimum temperature is 4°C.
Weather Forecasts for DeKalb (IL)
broken clouds and small chance of slight rain
partly cloudy and rain
partly cloudy and chance of slight rain