County Forecast for Sidell , IL
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180100-
Vermilion-
Including the city of Danville
1238 PM CDT Fri Jul 17 2026

This afternoon   Numerous showers and thunderstorms. Near steady temperature in the upper 80s. West winds around 5 mph. Chance of rain 70 percent. Heat index values up to 103.
Tonight   Partly cloudy. Scattered showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 50 percent.
Saturday   Mostly sunny. Showers likely with a chance of thunderstorms in the afternoon. Humid with highs around 90. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. Heat index values up to 105.
Saturday night   Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of rain 50 percent.
Sunday   Sunny. Highs in the mid 80s. Northeast winds around 5 mph.
Sunday night   Mostly clear. Lows in the lower 60s.
Monday   Mostly sunny. Highs in the upper 80s.
Monday night   Partly cloudy. A chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 30 percent.
Tuesday   Mostly sunny. Highs in the upper 80s.
Tuesday night through thursday   Mostly clear. Lows in the lower 60s. Highs around 80.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Continued Smoke, Increasing Showers Across Midwest Friday
Posted at 5:35AM Fri Jul 17, 2026 CDT
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