| NWS Forecast for: Iroquois County Issued by: National Weather Service Chicago, IL Last Update: 200 PM CDT Wed Jul 1 2026 | |
Tonight: Clear. Lows in the mid 70s. Southwest winds 5 to 10 mph. Thursday: Mostly sunny. Hot with highs in the lower 90s. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Heat index values up to 104. Thursday Night: Mostly clear. A slight chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. Southwest winds around 5 mph. Chance of precipitation 20 percent. Heat index values up to 101 early in the evening. Friday: Showers and thunderstorms likely. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of precipitation 70 percent. Heat index values up to 104. Friday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of precipitation 60 percent. Independence Day: Partly cloudy with a chance of showers and thunderstorms in the morning, then mostly cloudy with showers and thunderstorms likely in the afternoon. Highs in the upper 80s. Chance of precipitation 70 percent. Saturday Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of precipitation 40 percent. Sunday: Partly cloudy with a slight chance of showers and thunderstorms in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 40 percent. Sunday Night: Partly cloudy. Lows in the upper 60s. Monday: Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 30 percent. Monday Night: Partly cloudy. Lows in the mid 60s. Tuesday: Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 30 percent. Tuesday Night: Partly cloudy. Lows in the upper 60s. Wednesday: Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 40 percent. | |
| Zone Forecast: Iroquois County | |
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