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City of Centralia, ILCentralia, IL 7-Day Weather Forecast
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Centralia Weather Forecast
Centralia, IL Weather Forecast Date: 513 AM CDT Sun Sep 13 2026
Weather forecast for Centralia, IL
Today Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Today... Mostly sunny. Highs in the upper 80s. Northwest winds 5 to 10 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... Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 107. |
| Wed Hi: 95°FHi: 35°C Lo: 70°F Lo: 21°C |
Wednesday... Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 105 in the afternoon. |
Thu Hi: 95°FHi: 35°C Lo: 65°F Lo: 18°C |
Thursday... Partly cloudy. A slight chance of showers and thunderstorms. Highs in the mid 90s. Lows around 70. Chance of rain 20%. Heat index values up to 100. |
Fri Hi: 90°FHi: 32°C Lo: 65°F Lo: 18°C |
Friday... Partly cloudy. A 20% chance of showers. Highs around 90. Lows in the mid 60s. |
Sat Hi: 85°FHi: 29°C |
Saturday... Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 30%. |
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