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City of Sullivan, IllinoisSullivan, IL 7-Day Weather Forecast
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Sullivan Weather Forecast
Sullivan, IL Weather Forecast Date: 1052 PM CST Sat Nov 07 2026
Weather forecast for Sullivan, IL
Tonight Lo: 31°F Lo: -1°C |
Tonight... Mostly clear. Lows in the lower 30s. Southwest winds around 5 mph. |
Sun Hi: 61°FHi: 16°C Lo: 31°F Lo: -1°C |
Sunday... Sunny. Highs in the lower 60s. West winds 5 to 10 mph. |
| Mon Hi: 61°FHi: 16°C Lo: 40°F Lo: 4°C |
Monday... Sunny. Highs in the lower 60s. West winds around 5 mph. |
| Tue Hi: 65°FHi: 18°C Lo: 39°F Lo: 4°C |
Tuesday... Sunny. Highs in the mid 60s. |
Veterans Day Hi: 61°FHi: 16°C Lo: 39°F Lo: 4°C |
Veterans Day... Mostly cloudy. A 30% chance of rain. Highs in the lower 60s. Lows in the upper 30s. |
Thu Hi: 51°FHi: 11°C Lo: 30°F Lo: -1°C |
Thursday... Partly cloudy. Highs in the lower 50s. Lows around 30. |
| Fri Hi: 51°FHi: 11°C Lo: 30°F Lo: -1°C |
Friday... Partly cloudy. Highs in the lower 50s. Lows around 30. |
| Fri Hi: 51°FHi: 11°C Lo: 29°F Lo: -2°C |
Friday... Partly cloudy. Highs in the lower 50s. Lows around 30. |
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