10-Day Weather Forecast - Marietta, IL

Sunny. Highs in the mid 80s. Southwest winds 5 to 10 mph, becoming west with gusts up to 20 mph in the afternoon.

Clear. Lows in the lower 60s. Northwest winds 5 to 10 mph.

Sunny. Highs in the lower 80s. Northwest winds around 5 mph.

Mostly clear. Lows around 60. North winds around 5 mph in the evening, becoming light and variable.

Mostly clear. Highs in the lower 80s.

Mostly clear. Lows around 60.

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows in the mid 60s.

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows around 70.

Partly sunny. Highs in the upper 80s.

Partly cloudy. A chance of showers. Lows in the upper 60s. Chance of rain 40 percent.

Partly cloudy. A chance of showers. Highs in the mid 80s. Chance of rain 40 percent.

Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 68F. Dew point will be around 69F with an average humidity of 81%. Winds will be 2 mph from the E.

Mostly sunny with a 30% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 69F with an average humidity of 73%. Winds will be 2 mph from the SE.

Mostly clear with a 25% chance for rain and thunderstorms. Low temperature around 67F. Dew point will be around 69F with an average humidity of 83%. Winds will be 2 mph from the E.

Mostly sunny with a 30% chance for rain and thunderstorms. High temperature around 83F. Dew point will be around 68F with an average humidity of 75%. Winds will be 2 mph from the SE.

Mostly clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 66F. Dew point will be around 67F with an average humidity of 82%. Winds will be 2 mph from the SE.