


NWS Forecast for: De Kalb IL Issued by: National Weather Service Chicago, IL Last Update: 2:06 pm CDT Jul 13, 2025 | |
This Afternoon: Partly sunny, with a high near 79. West wind 5 to 10 mph. Tonight: Partly cloudy, with a low around 63. Calm wind becoming south southwest around 5 mph after midnight. Monday: Sunny, with a high near 85. West southwest wind around 5 mph. Monday Night: Mostly clear, with a low around 65. West southwest wind around 5 mph becoming calm. Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. South wind around 5 mph, with gusts as high as 15 mph. 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 69. Chance of precipitation is 20%. Wednesday: A chance of showers, with thunderstorms also possible after 7am. Partly sunny, with a high near 87. Chance of precipitation is 40%. Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 63. Friday: Partly sunny, with a high near 79. Friday Night: Partly cloudy, with a low around 62. Saturday: A chance of showers. Partly sunny, with a high near 82. | |
De Kalb IL 41.92°N 88.76°W | |
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