7-Day Forecast 41.92°N 88.76°W (Text-Only)
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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