| NWS Forecast for: De Kalb County Issued by: National Weather Service Chicago, IL Last Update: 513 AM CST Fri Feb 27 2026 |  |
Today: Mostly sunny in the morning, then becoming partly cloudy. Patchy fog early in the morning. Windy. Highs in the lower 60s. Southwest winds 10 to 15 mph with gusts up to 30 mph, increasing to 15 to 25 mph with gusts up to 40 mph in the afternoon. Tonight: Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s. Northwest winds 10 to 15 mph. Gusts up to 25 mph in the evening. Saturday: Mostly cloudy. A slight chance of snow late in the morning. A chance of snow in the afternoon. Little or no snow accumulation. Highs in the mid 30s. North winds 5 to 10 mph. Chance of precipitation 40 percent. Saturday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 17. North winds around 10 mph. Sunday: Mostly cloudy. Highs in the lower 30s. Northeast winds around 10 mph. Sunday Night: Mostly cloudy with a 50 percent chance of snow. Lows around 20. Monday: Mostly cloudy. Highs in the upper 30s. Monday Night: Mostly cloudy. A chance of rain and snow after midnight. Lows in the mid 20s. Chance of precipitation 30 percent. Tuesday: A chance of snow in the morning. Cloudy with a chance of rain. Highs in the lower 40s. Chance of precipitation 50 percent. Tuesday Night: Mostly cloudy. A chance of rain in the evening. Lows in the upper 20s. Chance of precipitation 30 percent. Wednesday: Mostly cloudy with a 40 percent chance of rain. Highs in the upper 40s. Wednesday Night: Rain likely. Lows in the upper 30s. Chance of precipitation 70 percent. Thursday: Mostly cloudy. Rain likely, mainly in the morning. Highs in the mid 50s. Chance of precipitation 60 percent. | |
| Zone Forecast: De Kalb County | |
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