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Harmon Park, IL 7-Day Weather Forecast
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Harmon Park Weather Forecast
Harmon Park, IL Weather Forecast Date: 631 AM CDT Tue Sep 15 2026
Weather forecast for Harmon Park, IL
Today Hi: 85°FHi: 29°C Lo: 65°F Lo: 18°C |
Today... Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers and thunderstorms. Highs in the mid 80s. Southwest winds around 10 mph. Chance of precipitation 50%. |
| Wed Hi: 75°FHi: 24°C Lo: 69°F Lo: 21°C |
Wednesday... Mostly cloudy. A chance of showers until late afternoon. A slight chance of thunderstorms in the afternoon. A slight chance of showers late. Highs in the mid 70s. Northeast winds 5 to 10 mph. Chance of precipitation 50%. |
| Thu Hi: 79°FHi: 26°C Lo: 65°F Lo: 18°C |
Thursday... Mostly cloudy. A chance of showers in the morning. A slight chance of thunderstorms. A slight chance of showers in the afternoon. Humid with highs in the upper 70s. West winds around 5 mph, becoming north in the afternoon. Chance of precipitation 50%. |
Fri Hi: 79°FHi: 26°C Lo: 65°F Lo: 18°C |
Friday... Mostly cloudy. A chance of showers, mainly in the morning. Highs in the upper 70s. Chance of precipitation 40%. |
| Sat Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Saturday... Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 40%. |
| Sun Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Sunday... Mostly cloudy with a chance of showers. Highs in the mid 70s. Chance of precipitation 40%. |
Mon Hi: 71°FHi: 22°C |
Monday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 70s. |
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