| NWS Forecast for: De Kalb County Issued by: National Weather Service Chicago, IL Last Update: 302 AM CDT Sat Mar 21 2026 |  |
| Today: Partly cloudy in the morning then clearing. Breezy. Highs in the upper 70s. South winds 5 to 10 mph, increasing to southwest 15 to 20 mph with gusts up to 30 mph in the afternoon. Tonight: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. Southwest winds 10 to 15 mph, becoming north after midnight. Sunday: Mostly cloudy. A slight chance of rain early in the morning, then a chance of rain in the late morning and early afternoon. A slight chance of rain late. Near steady temperature in the mid 40s. Northeast winds 10 to 15 mph, increasing to north 15 to 20 mph in the afternoon. Chance of precipitation 30 percent. Sunday Night: Partly cloudy in the evening, then clearing. Lows in the upper 20s. North winds 10 to 15 mph with gusts up to 25 mph, diminishing to 5 to 10 mph after midnight. Monday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 40s. North winds 5 to 10 mph. Monday Night: Mostly cloudy. Lows in the lower 30s. Tuesday: Mostly cloudy. Highs in the upper 50s. Tuesday Night: Mostly cloudy. Lows in the upper 30s. Wednesday: Mostly cloudy. Highs in the mid 50s. Wednesday Night: Mostly cloudy. Lows in the mid 40s. Thursday: Mostly cloudy with a 30 percent chance of showers. Highs in the mid 60s. Thursday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 30. Friday: Partly cloudy. Highs in the mid 40s. | |
| Zone Forecast: De Kalb County | |
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