| NWS Forecast for: Grundy County Issued by: National Weather Service Chicago, IL Last Update: 122 AM CDT Tue Apr 28 2026 | |
| Today: Mostly cloudy. Highs in the upper 50s. West winds 10 to 15 mph. Gusts up to 25 mph in the morning. Tonight: Mostly cloudy. Isolated showers early in the evening, then scattered showers in the late evening and overnight. Lows in the upper 40s. Northwest winds 5 to 10 mph. Chance of precipitation 40 percent. Wednesday: Partly cloudy. Isolated showers early in the morning. Highs in the lower 60s. North winds 10 to 15 mph. Chance of precipitation 20 percent. Wednesday Night: Mostly clear. Lows around 40. Northwest winds 5 to 10 mph, becoming west after midnight. Thursday: Partly cloudy in the morning, then becoming mostly cloudy. Highs around 60. West winds 5 to 10 mph. Thursday Night: Partly cloudy. Lows in the upper 30s. Friday: Partly cloudy in the morning, then becoming mostly cloudy. Highs in the mid 50s. Friday Night: Mostly cloudy in the evening, then clearing. Areas of frost after midnight. Lows in the mid 30s. Saturday: Partly cloudy. Highs in the upper 50s. Saturday Night: Partly cloudy in the evening, then clearing. Lows around 40. Sunday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 60s. Sunday Night: Partly cloudy. Lows in the upper 40s. Monday: Mostly cloudy. Highs in the upper 60s. | |
| Zone Forecast: Grundy County | |
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