| NWS Forecast for: De Kalb IL Issued by: National Weather Service Chicago, IL Last Update: 4:12 pm CDT Jul 3, 2025 |  |
Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 20%. Independence Day: A 30 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 90. Heat index values as high as 95. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Friday Night: Mostly clear, with a low around 70. South wind 5 to 10 mph. Saturday: Mostly sunny, with a high near 94. Heat index values as high as 98. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71. South southwest wind around 10 mph, with gusts as high as 20 mph. Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Sunday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 20%. Monday: Mostly sunny, with a high near 86. Monday Night: Mostly clear, with a low around 63. Tuesday: Mostly sunny, with a high near 86. Tuesday Night: A chance of showers. Mostly cloudy, with a low around 66. Wednesday: A chance of showers. Mostly sunny, with a high near 86. Wednesday Night: Partly cloudy, with a low around 63. Thursday: Mostly sunny, with a high near 86. | |
| De Kalb IL 41.92°N 88.76°W | |
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