| NWS Forecast for: De Kalb County Issued by: National Weather Service Chicago, IL Last Update: 332 AM CDT Wed May 20 2026 |  |
Today: Partly cloudy. Highs in the lower 60s. Northeast winds 10 to 15 mph. Tonight: Partly cloudy. Lows in the lower 40s. Northeast winds 10 to 15 mph. Thursday: Partly cloudy in the morning, then becoming mostly cloudy. Highs in the mid 60s. East winds 10 to 15 mph. Thursday Night: Mostly cloudy. Lows in the upper 40s. East winds 10 to 15 mph. Friday: Mostly cloudy. A chance of showers. Highs in the mid 60s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 50 percent. Friday Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 50s. Chance of precipitation 70 percent. Saturday: Mostly cloudy. Highs in the lower 70s. Saturday Night: Mostly cloudy. Lows in the lower 50s. Sunday: Mostly cloudy. Highs in the upper 70s. Sunday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s. Memorial Day: Mostly cloudy. Highs around 80. Monday Night: Partly cloudy. Lows in the mid 50s. Tuesday: Mostly cloudy. Highs in the lower 80s. | |
| Zone Forecast: De Kalb County | |
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