Union, IL 7-Day Weather Forecast
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Union Weather Forecast


Union, IL Weather Forecast Date: 628 PM CDT Sat Sep 05 2026
Weather forecast for Union, IL
| Tonight Lo: 61°F Lo: 16°C |
Tonight... Partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph. |
| Sun Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Sunday... Partly cloudy. Highs in the upper 70s. East winds 5 to 10 mph. |
| Labor Day Hi: 80°FHi: 27°C Lo: 61°F Lo: 16°C |
Labor Day... Partly cloudy. Highs around 80. Southeast winds 5 to 10 mph. |
| Tue Hi: 85°FHi: 29°C Lo: 70°F Lo: 21°C |
Tuesday... Partly cloudy. Highs in the mid 80s. |
| Wed Hi: 89°FHi: 32°C Lo: 61°F Lo: 16°C |
Wednesday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 80s. |
| Thu Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Thursday... Partly cloudy. Highs in the upper 70s. |
| Fri Hi: 80°FHi: 27°C Lo: 59°F Lo: 15°C |
Friday... Partly cloudy. Highs around 80. |
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