Weather WorldMarietta, IL 7-Day Weather Forecast
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Marietta Weather Forecast
Marietta, IL Weather Forecast Date: 838 PM CST Mon Mar 02 2026
Weather forecast for Marietta, IL
Tonight Lo: 39°F Lo: 4°C |
Tonight... Cloudy. Rain showers likely. Near steady temperature in the upper 30s. East winds around 5 mph. Chance of rain 70%. |
| Tue Hi: 49°FHi: 9°C Lo: 39°F Lo: 4°C |
Tuesday... Showers. Highs in the upper 40s. East winds around 5 mph. Chance of rain 90%. |
| Wed Hi: 55°FHi: 13°C Lo: 49°F Lo: 9°C |
Wednesday... Showers likely. Highs in the mid 50s. East winds 5 to 10 mph. Chance of rain 70%. |
Thu Hi: 61°FHi: 16°C Lo: 45°F Lo: 7°C |
Thursday... Mostly cloudy. Showers likely, mainly in the morning. Highs in the lower 60s. Chance of rain 70%. |
| Fri Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Friday... Showers. Not as cool with highs in the mid 70s. Chance of rain 80%. |
| Sat Hi: 65°FHi: 18°C Lo: 41°F Lo: 5°C |
Saturday... Mostly cloudy. A chance of showers in the morning. Highs in the mid 60s. Chance of rain 50%. |
Sun Hi: 61°FHi: 16°C Lo: 45°F Lo: 7°C |
Sunday... Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s. |
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