| NWS Forecast for: Iroquois County Issued by: National Weather Service Chicago, IL Last Update: 121 AM CDT Wed Sep 23 2026 |  |
Rest Of Tonight: Cloudy. Near steady temperature in the upper 50s. Northeast winds around 10 mph. Wednesday: Cloudy. Highs in the upper 60s. Northeast winds 10 to 15 mph. Wednesday Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph. Thursday: Mostly cloudy. Highs in the lower 70s. East winds 5 to 10 mph. Thursday Night: Mostly cloudy. Lows in the lower 50s. East winds around 5 mph. Friday: Partly cloudy. Highs around 70. Friday Night: Partly cloudy. Lows in the upper 40s. Saturday: Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 60s. Saturday Night: Mostly cloudy. Lows in the lower 50s. Sunday: Mostly cloudy. Highs in the lower 70s. Sunday Night: Partly cloudy. Lows in the lower 50s. Monday: Partly cloudy in the morning, then clearing. Highs in the mid 70s. Monday Night: Mostly clear. Lows in the mid 50s. Tuesday: Partly cloudy. Highs around 80. | |
| Zone Forecast: Iroquois County | |
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