


NWS Forecast for: De Kalb IL Issued by: National Weather Service Chicago, IL Last Update: 2:41 am CDT Jul 14, 2025 | |
Overnight: Clear, with a low around 16. Calm wind. Monday: Sunny, with a high near 29. Calm wind becoming southwest 5 to 10 km/h in the afternoon. Monday Night: Mostly clear, with a low around 18. Calm wind. Tuesday: Sunny, with a high near 31. South wind 5 to 10 km/h, with gusts as high as 20 km/h. Tuesday Night: Partly cloudy, with a low around 21. South wind 5 to 10 km/h. Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 31. Chance of precipitation is 40%. Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 20. Chance of precipitation is 60%. Thursday: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 28. Thursday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 17. Friday: Partly sunny, with a high near 26. Friday Night: Partly cloudy, with a low around 17. Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 28. Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 19. Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 29. | |
De Kalb IL 41.92°N 88.76°W | |
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