| NWS Forecast for: Grundy County Issued by: National Weather Service Chicago, IL Last Update: 219 AM CDT Thu Oct 2 2025 |  |
| Today: Partly cloudy through mid afternoon, then becoming mostly sunny. Highs in the upper 80s. Southeast winds around 5 mph. Tonight: Mostly clear. Lows around 60. Southeast winds around 5 mph. Friday: Mostly sunny through mid afternoon, then becoming partly cloudy. Highs in the upper 80s. South winds around 5 mph. Friday Night: Partly cloudy early in the evening, then becoming mostly clear. Lows in the mid 60s. South winds around 5 mph. Saturday: Mostly sunny. Highs in the upper 80s. South winds 5 to 10 mph. Saturday Night: Clear. Lows in the lower 60s. Sunday: Sunny. Highs in the upper 80s. Sunday Night: Mostly clear. Lows in the mid 60s. Monday: Partly cloudy. Highs in the mid 80s. Monday Night: Partly cloudy. A chance of showers after midnight. Lows in the upper 50s. Chance of precipitation 30 percent. Tuesday: Mostly cloudy with a chance of showers. Highs in the mid 70s. Chance of precipitation 30 percent. Tuesday Night: Mostly cloudy. Lows around 50. Wednesday: Mostly sunny. Highs in the upper 60s. | |
| Zone Forecast: Grundy County | |
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