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Harmon, IL 7-Day Weather Forecast
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Harmon Weather Forecast
Harmon, IL Weather Forecast Date: 256 AM CDT Fri Sep 04 2026
Weather forecast for Harmon, IL
Morning Hi: 75°FHi: 24°C |
Early This Morning... Mostly clear. Temperatures in the mid 70s. Southwest winds around 5 mph. |
Today Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Today... Mostly sunny in the morning, then becoming partly cloudy. Hot, humid. Highs in the mid 90s. South winds 5 to 10 mph, becoming southwest in the afternoon. Heat index values up to 107. |
| Sat Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Saturday... Mostly sunny. Humid with highs in the upper 80s. North winds 5 to 10 mph. Heat index values up to 100. |
| Sun Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Sunday... Partly cloudy. Highs in the lower 80s. East winds around 5 mph. |
| Labor Day Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Labor Day... Partly cloudy. Highs in the lower 80s. |
| Tue Hi: 85°FHi: 29°C Lo: 71°F Lo: 22°C |
Tuesday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 80s. |
| Wed Hi: 89°FHi: 32°C Lo: 69°F Lo: 21°C |
Wednesday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 80s. |
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