| NWS Forecast for: De Kalb County Issued by: National Weather Service Chicago, IL Last Update: 303 AM CST Fri Feb 13 2026 |  |
| Today: Mostly sunny. Highs around 50. South winds 5 to 10 mph, increasing to southwest 10 to 15 mph in the afternoon. Tonight: Mostly clear. Lows around 30. Southwest winds around 5 mph in the evening, becoming light and variable. Saturday: Mostly cloudy. Highs in the lower 50s. Southeast winds around 5 mph. Saturday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. South winds around 5 mph, becoming southwest after midnight. Sunday: Mostly sunny. Highs in the mid 50s. West winds around 5 mph. Sunday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s. Washingtons Birthday: Mostly cloudy. Highs in the upper 50s. Monday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 30s. Tuesday: Mostly cloudy. Highs in the upper 50s. Tuesday Night: Mostly cloudy with a 50 percent chance of rain. Near steady temperature in the upper 40s. Wednesday: Mostly cloudy with a 40 percent chance of rain. Breezy with highs in the lower 60s. Wednesday Night: Mostly cloudy. A chance of rain in the evening. Lows in the mid 30s. Chance of precipitation 30 percent. Thursday: Mostly cloudy. A chance of rain in the afternoon. Highs in the upper 40s. Chance of precipitation 30 percent. | |
| Zone Forecast: De Kalb County | |
Visit your local NWS office at: https://www.weather.gov/lot |