| NWS Forecast for: Grundy County Issued by: National Weather Service Chicago, IL Last Update: 937 AM CDT Tue May 26 2026 |  |
Rest Of Today: Mostly cloudy. Highs in the mid 80s. Southeast winds around 5 mph. Tonight: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s. Southeast winds around 5 mph. Wednesday: Partly cloudy. Highs in the mid 80s. Northeast winds 5 to 10 mph. Wednesday Night: Mostly clear. Lows in the upper 50s. Northeast winds around 10 mph. Thursday: Mostly sunny. Highs in the upper 70s. Northeast winds 10 to 15 mph. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. Friday: Partly cloudy. Highs in the lower 80s. Friday Night: Partly cloudy. Lows in the mid 50s. Saturday: Mostly sunny. Highs around 80. Saturday Night: Mostly clear. Lows in the mid 50s. Sunday: Sunny. Highs in the upper 70s. Sunday Night: Clear. Lows in the mid 50s. Monday: Sunny. Highs around 80. | |
| Zone Forecast: Grundy County | |
Visit your local NWS office at: https://www.weather.gov/lot |