Weather forecast for: De Kalb IL
Last Update: 12:06 am CST Mar 3, 2026
Overnight: A slight chance of freezing rain after 5am. Mostly cloudy, with a low around 30. East southeast wind around 5 mph becoming calm. Chance of precipitation is 20%.
Tuesday: A 30 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 45. East wind around 5 mph becoming calm.
Tuesday Night: A 20 percent chance of showers. Partly cloudy, with a low around 32. East northeast wind around 5 mph, with gusts as high as 10 mph.
Wednesday: A 30 percent chance of showers. Partly sunny, with a high near 51. East wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely after midnight. Cloudy, with a low around 41. East wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%.
Thursday: Showers. High near 56. Chance of precipitation is 80%.
Thursday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 42.
Friday: Showers. Mostly cloudy, with a high near 66.
Friday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 53.
Saturday: A chance of showers before noon. Mostly cloudy, with a high near 63.
Saturday Night: Mostly cloudy, with a low around 39.
Sunday: Mostly sunny, with a high near 60.
Sunday Night: Mostly clear, with a low around 42.
Monday: Sunny, with a high near 64.
WeatherWorld.com
City of DeKalb, Illinois
