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Thomas Park, IL 7-Day Weather Forecast
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Thomas Park Weather Forecast
Thomas Park, IL Weather Forecast Date: 412 AM CDT Tue Sep 15 2026
Weather forecast for Thomas Park, IL
Today Hi: 90°FHi: 32°C Lo: 65°F Lo: 18°C |
Today... Mostly sunny with a chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Warmer with highs around 90. South winds 10 to 15 mph, becoming west 5 to 10 mph this afternoon. Chance of rain 50%. Heat index values up to 100. |
| Wed Hi: 85°FHi: 29°C Lo: 70°F Lo: 21°C |
Wednesday... Partly sunny with a chance of showers with a slight chance of thunderstorms. Humid with highs in the mid 80s. Northeast winds 5 to 10 mph. Chance of rain 50%. |
Thu Hi: 89°FHi: 32°C Lo: 69°F Lo: 21°C |
Thursday... Partly sunny. A chance of showers in the morning. Humid with highs in the upper 80s. Southwest winds around 5 mph, becoming northwest in the afternoon. Chance of rain 50%. |
Fri Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Friday... A chance of showers in the morning. Mostly sunny. Highs in the mid 80s. Chance of rain 40%. |
Sat Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Saturday... Partly cloudy. Lows in the upper 60s. Highs in the upper 80s. |
| Sun Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Sunday... Partly sunny with a chance of showers. Cooler with highs in the upper 70s. Chance of rain 40%. |
Mon Hi: 71°FHi: 22°C |
Monday... Mostly sunny. Highs in the lower 70s. |
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