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City of Chester, ILChester, IL 7-Day Weather Forecast
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Chester Weather Forecast
Chester, IL Weather Forecast Date: 152 AM CDT Sun Sep 13 2026
Weather forecast for Chester, IL
Tonight Lo: 65°F Lo: 18°C |
Tonight... Mostly clear. Lows in the mid 60s. Light and variable winds. |
Sun Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Sunday... Mostly sunny. Highs in the upper 80s. Northwest winds around 5 mph. |
| Mon Hi: 89°FHi: 32°C Lo: 70°F Lo: 21°C |
Monday... Mostly sunny. Highs in the upper 80s. East winds 5 to 10 mph. |
| Tue Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Tuesday... Mostly clear. Highs in the mid 90s. Lows in the lower 70s. Heat index values up to 110. |
| Wed Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Wednesday... Mostly clear. Highs in the mid 90s. Lows in the lower 70s. Heat index values up to 110. |
| Thu Hi: 95°FHi: 35°C Lo: 71°F Lo: 22°C |
Thursday... Mostly clear. Highs in the mid 90s. Lows in the lower 70s. Heat index values up to 110. |
| Thu Hi: 95°FHi: 35°C Lo: 65°F Lo: 18°C |
Thursday... Mostly clear. Highs in the mid 90s. Lows in the lower 70s. Heat index values up to 110. |
Fri Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Friday... Partly cloudy. A 20% chance of showers. Highs in the upper 80s. Lows in the mid 60s. |
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