| NWS Forecast for: Grundy County Issued by: National Weather Service Chicago, IL Last Update: 511 AM CST Mon Feb 9 2026 |  |
| Today: Partly cloudy in the morning, then becoming mostly cloudy. Highs in the lower 40s. South winds 5 to 10 mph. Tonight: Mostly cloudy. Near steady temperature in the upper 30s. South winds 5 to 10 mph, becoming southwest after midnight. Tuesday: Mostly cloudy in the morning, then becoming partly cloudy. Breezy with highs in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Tuesday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 20s. Northwest winds 5 to 10 mph. Wednesday: Partly cloudy in the morning, then clearing. Highs in the lower 40s. Northwest winds 5 to 10 mph. Wednesday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 20s. Thursday: Cloudy. A slight chance of snow in the afternoon. Highs in the upper 30s. Chance of precipitation 20 percent. Thursday Night: Mostly cloudy. A chance of snow, mainly in the evening. Lows in the mid 20s. Chance of precipitation 30 percent. Friday: Mostly cloudy. Highs in the lower 40s. Friday Night: Mostly cloudy. Lows in the mid 20s. Saturday: Mostly cloudy. A chance of rain in the afternoon. Highs in the lower 40s. Chance of precipitation 30 percent. Saturday Night: A chance of rain in the evening. Mostly cloudy with a chance of snow. Lows in the upper 20s. Chance of precipitation 50 percent. Sunday: Partly cloudy with a chance of rain and snow in the morning, then mostly sunny in the afternoon. Highs in the lower 40s. Chance of precipitation 30 percent. | |
| Zone Forecast: Grundy County | |
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