10-Day Weather Forecast - Marietta, IL
- |76°FMostly ClearHourly details
Tonight
76°FMostly clear. Near steady temperature in the mid 70s. South winds 5 to 10 mph.
- 89|74°F50% Chance of StormsHourly details
Day
89°FMostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent. Heat index values up to 100.
Night
74°FMostly cloudy with a chance of thunderstorms. Showers likely mainly in the evening. Humid with lows in the lower 70s. Southwest winds 15 to 20 mph diminishing to 5 to 10 mph after midnight. Chance of rain 70 percent.
- 88|62°F80% Chance of StormsHourly details
Day
88°FMostly sunny. A chance of showers in the morning then showers with a chance of thunderstorms in the afternoon. Humid with highs in the lower 90s. South winds 15 to 20 mph. Chance of rain 80 percent. Heat index values up to 102.
Night
62°FShowers likely with a chance of thunderstorms in the evening then partly cloudy after midnight. Cooler with lows around 60. Southwest winds 15 to 20 mph with gusts up to 30 mph becoming northwest 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 70 percent.
- 83|65°FSunnyHourly details
Day
83°FClear. Highs in the lower 80s. Lows around 60.
Night
65°FClear. Highs in the lower 80s. Lows around 60.
Weekend Weather
- 84|67°FSunnyHourly details
Day
84°FSunny. Highs in the mid 80s.
Night
67°FMostly clear with a chance of showers and thunderstorms in the evening then mostly cloudy with a chance of showers after midnight. Lows in the lower 60s. Chance of rain 50 percent.
- 78|61°F50% Chance of StormsHourly details
Day
78°FPartly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.
Night
61°FMostly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 40 percent.
- 74|58°FPartly SunnyHourly details
Day
74°FPartly sunny. Highs in the upper 70s.
Night
58°FPartly cloudy. Lows in the mid 50s.
- 74|60°FSunny
Day
74°FSunny. Highs in the upper 70s.
Night
60°FMostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 60F. Dew point will be around 57F with an average humidity of 77%. Winds will be 4 mph from the SW.
- 78|66°F30% Chance of Rain
Day
78°FMostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 78F. Dew point will be around 60F with an average humidity of 69%. Winds will be 5 mph from the SW.
Night
66°FMostly clear with a chance of rain. Chance of precipitation 35%. Low temperature around 66F. Dew point will be around 62F with an average humidity of 71%. Winds will be 6 mph from the SW.
- 82|69°F40% Chance of Rain
Day
82°FMostly sunny with a 35% chance for rain and thunderstorms. High temperature around 82F. Dew point will be around 64F with an average humidity of 67%. Winds will be 6 mph from the SW.
Night
69°FClear with a 40% chance for rain and thunderstorms. Low temperature around 69F. Dew point will be around 66F with an average humidity of 74%. Winds will be 3 mph from the SW.













