Union County State Conservation Area, IL 7-Day Weather Forecast

Union County State Conservation Area Weather Forecast

Union County State Conservation Area, IL Weather Forecast Date: 807 AM CDT Sun Aug 09 2026

Weather forecast for Union County State Conservation Area, IL

Today Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C	Today... Patchy fog this morning. Sunny. Highs in the lower 90s. South winds around 5 mph, increasing to around 10 mph this afternoon.
Mon Hi: 95°FHi: 35°C Lo: 75°F Lo: 24°C	Monday... Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Highest heat index readings heat index readings up to 105 in the afternoon.
Tue Hi: 95°FHi: 35°C Lo: 79°F Lo: 26°C	Tuesday... Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Highest heat index readings heat index readings up to 105 in the afternoon.
Wed Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C	Wednesday... Mostly sunny. Hot with highs in the mid 90s.
Thu Hi: 90°FHi: 32°C Lo: 71°F Lo: 22°C	Thursday... Mostly cloudy. A chance of showers and thunderstorms. Highs around 90. Lows in the lower 70s. Chance of rain 50%.
Fri Hi: 89°FHi: 32°C Lo: 71°F Lo: 22°C	Friday... Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the upper 80s. Chance of rain 50%.
Sat Hi: 89°FHi: 32°C	Saturday... Mostly sunny. Highs in the upper 80s.