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Posen, IL 7-Day Weather Forecast
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Posen Weather Forecast
Posen, IL Weather Forecast Date: 246 PM CDT Sat Oct 17 2026
Weather forecast for Posen, IL
Late Today Hi: 59°FHi: 15°C Lo: 39°F Lo: 4°C |
Late This Afternoon... Sunny. Temperatures in the upper 50s. Southwest winds around 5 mph. |
| Sun Hi: 65°FHi: 18°C Lo: 40°F Lo: 4°C |
Sunday... Sunny. Highs in the mid 60s. Southwest winds 10 to 15 mph. |
| Mon Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Monday... Sunny. Highs in the upper 60s. South winds around 5 mph. |
| Tue Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Tuesday... Mostly sunny. Highs around 70. |
| Wed Hi: 71°FHi: 22°C Lo: 50°F Lo: 10°C |
Wednesday... Mostly sunny. Highs in the lower 70s. |
Thu Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Thursday... Partly cloudy in the morning, then becoming mostly sunny. Highs in the lower 70s. |
| Fri Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Friday... Mostly sunny. Highs in the lower 70s. |
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