| NWS Forecast for: De Kalb County Issued by: National Weather Service Chicago, IL Last Update: 243 AM CST Tue Feb 10 2026 | |
| Today: Partly cloudy. Breezy. Highs in the mid 40s. Northwest winds 10 to 15 mph, increasing to 15 to 20 mph in the afternoon. Gusts up to 30 mph. Tonight: Partly cloudy. Lows in the mid 20s. Northwest winds 10 to 15 mph. Wednesday: Partly cloudy in the morning, then becoming sunny. Highs around 40. Northwest winds 5 to 10 mph. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 20s. Northwest winds around 5 mph, becoming north after midnight. Thursday: Mostly cloudy. A slight chance of snow in the afternoon. Highs in the lower 40s. Southeast winds around 5 mph. Chance of precipitation 20 percent. Thursday Night: Mostly cloudy with a slight chance of snow in the evening, then partly cloudy after midnight. Lows in the mid 20s. Chance of precipitation 20 percent. Friday: Mostly sunny. Highs in the mid 40s. Friday Night: Mostly clear. Lows in the upper 20s. Saturday: Partly cloudy. Highs in the upper 40s. Saturday Night: Mostly cloudy. Lows in the lower 30s. Sunday: Partly cloudy. A chance of rain in the morning. Highs in the mid 40s. Chance of precipitation 40 percent. Sunday Night: Mostly clear. Lows in the upper 20s. Washingtons Birthday: Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 40s. | |
| Zone Forecast: De Kalb County | |
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