| NWS Forecast for: De Kalb County Issued by: National Weather Service Chicago, IL Last Update: 705 AM CDT Wed Aug 19 2026 |  |
Today: Mostly cloudy. Areas of fog early in the morning. Highs around 80. North winds 5 to 10 mph. Tonight: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 50s. Northeast winds around 5 mph. Thursday: Sunny. Highs around 80. Northeast winds around 5 mph. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 60. South winds around 5 mph. Friday: Partly cloudy. A chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Southwest winds 5 to 10 mph. Chance of precipitation 40 percent. Friday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of precipitation 20 percent. Saturday: Partly cloudy in the morning, then becoming mostly sunny. A slight chance of showers and thunderstorms. Highs in the upper 70s. Chance of precipitation 20 percent. Saturday Night: Mostly clear. Lows in the upper 50s. Sunday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 70s. Sunday Night: Partly cloudy. Lows in the upper 50s. Monday: Partly cloudy. Highs in the mid 70s. Monday Night: Partly cloudy. Lows in the upper 50s. Tuesday: Partly cloudy. Highs in the upper 70s. | |
| Zone Forecast: De Kalb County | |
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