Hermon, IL 7-Day Weather Forecast
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Hermon Weather Forecast


Hermon, IL Weather Forecast Date: 147 AM CDT Mon Oct 19 2026
Weather forecast for Hermon, IL
| Tonight Lo: 40°F Lo: 4°C |
Tonight... Clear. Near steady temperature in the lower 40s. South winds around 5 mph. |
| Mon Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Monday... Sunny. Highs around 70. South winds around 5 mph. |
| Tue Hi: 71°FHi: 22°C Lo: 45°F Lo: 7°C |
Tuesday... Sunny. Highs in the lower 70s. Southeast winds around 5 mph. |
| Wed Hi: 71°FHi: 22°C Lo: 50°F Lo: 10°C |
Wednesday... Sunny. Highs in the lower 70s. |
| Thu Hi: 75°FHi: 24°C Lo: 50°F Lo: 10°C |
Thursday... Mostly clear. Lows around 50. Highs in the mid 70s. |
| Fri Hi: 75°FHi: 24°C Lo: 50°F Lo: 10°C |
Friday... Mostly clear. Lows around 50. Highs in the mid 70s. |
| Fri Hi: 75°FHi: 24°C Lo: 51°F Lo: 11°C |
Friday... Mostly clear. Lows around 50. Highs in the mid 70s. |
| Sat Hi: 75°FHi: 24°C Lo: 51°F Lo: 11°C |
Saturday... Mostly cloudy. Highs in the mid 70s. Lows in the lower 50s. |
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