| NWS Forecast for: Dekalb IL Issued by: National Weather Service Chicago, IL Last Update: 9:56 pm CDT Jul 13, 2025 | |
Tonight: Widespread haze before midnight. Patchy fog after midnight. Otherwise, mostly clear, with a low around 17. Calm wind. Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 29. West southwest wind 5 to 10 km/h. Monday Night: Mostly clear, with a low around 18. Calm wind. Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 31. South wind 5 to 10 km/h, with gusts as high as 20 km/h. Tuesday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 21. South wind 5 to 10 km/h. Chance of precipitation is 20%. Wednesday: A chance of showers, with thunderstorms also possible after 7am. Partly sunny, with a high near 31. Chance of precipitation is 40%. Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 28. Thursday Night: A chance of showers 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. Partly sunny, with a high near 28. Saturday Night: A chance of showers. Mostly cloudy, with a low around 18. Sunday: A chance of showers. Partly sunny, with a high near 28. | |
| Dekalb IL 41.9°N 88.76°W | |
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