| NWS Forecast for: Grundy County Issued by: National Weather Service Chicago, IL Last Update: 111 AM CDT Sun Oct 25 2026 |  |
| Rest Of Tonight: Partly cloudy. Near steady temperature around 50. South winds around 5 mph. Sunday: Partly cloudy. Highs in the mid 70s. South winds around 5 mph. Sunday Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 50. Light and variable winds. Monday: Mostly cloudy. Highs in the lower 70s. Northeast winds 5 to 10 mph. Monday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. East winds 5 to 10 mph. Tuesday: Mostly cloudy. Highs in the mid 70s. Tuesday Night: Mostly cloudy. Lows in the lower 50s. Wednesday: Partly cloudy in the morning, then clearing. Highs in the upper 70s. Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. Thursday: Partly cloudy. Highs in the upper 70s. Thursday Night: Partly cloudy. Lows in the mid 50s. Friday: Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 70s. Friday Night: Mostly cloudy. Lows in the mid 50s. Saturday: Mostly cloudy with a 40 percent chance of showers. Highs in the mid 70s. | |
| Zone Forecast: Grundy County | |
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