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Whco-Am Sparta, IL Weather Forecast
Whco-Am Sparta, IL Weather Forecast Date: 553 AM CDT Wed Aug 05 2026
The area/counties/county of: Randolph County Il, including the cities of: Chester and Sparta.or toggle through each period.
Today... Sunny. Highs in the lower 90s. South winds around 5 mph.
Tonight... Mostly cloudy with scattered showers and thunderstorms. Lows around 70. South winds around 5 mph. Chance of rain 50%.
Thursday... Mostly cloudy. Showers and numerous thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 80%.
Thursday Night... Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with showers and thunderstorms likely after midnight. Humid with lows around 70. South winds around 5 mph. Chance of rain 70%.
Friday... Showers and thunderstorms likely. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 70%.
Friday Night... Partly cloudy. Showers and thunderstorms likely, mainly in the evening. Lows in the upper 60s. Chance of rain 70%.
Saturday... Mostly sunny. Highs in the upper 80s. Heat index values up to 100 in the afternoon.
Saturday Night... Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 105.
Sunday... Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 105.
Monday... Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 105.
Monday Night... Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20%. Heat index values up to 105 early in the evening.
POP = Probability of Precipitation
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