10-Day Weather Forecast - Marietta, IL

Mostly sunny. Cooler with highs in the upper 20s. North winds around 5 mph becoming northwest in the afternoon.

Mostly clear in the evening then becoming partly cloudy. Lows around 19. Light and variable winds.

Partly sunny. Highs in the lower 30s. Northeast winds around 5 mph.

Mostly cloudy. Lows in the lower 20s. Northeast winds around 5 mph.

Partly sunny. Highs in the mid 30s.

Partly cloudy in the evening then clearing. Lows around 20.

Partly sunny. Highs in the mid 30s.

Partly cloudy. Lows around 30. Highs around 50.

Partly cloudy. Lows around 30. Highs around 50.

Mostly cloudy. Lows in the mid 30s. Highs in the lower 50s.

Mostly cloudy. Lows in the mid 30s. Highs in the lower 50s.

Partly cloudy. Lows in the upper 20s. Highs in the mid 40s.

Partly cloudy. Lows in the upper 20s. Highs in the mid 40s.

Partly cloudy. Low temperature around 33F. Dew point will be around 31F with an average humidity of 83%. Winds will be 1 mph from the E.

Partly cloudy. High temperature around 39F. Dew point will be around 30F with an average humidity of 76%. Winds will be 2 mph from the N.

Mostly cloudy with a chance of rain-snow mix. Chance of precipitation 40%. Low temperature around 31F. Dew point will be around 27F with an average humidity of 78%. Winds will be 2 mph from the NE.

Cloudy with a chance of rain-snow mix. Chance of precipitation 40%. High temperature around 38F. Dew point will be around 29F with an average humidity of 76%. Winds will be 3 mph from the SE.

Cloudy with a chance of rain-snow mix. Chance of precipitation 35%. Low temperature around 32F. Dew point will be around 31F with an average humidity of 89%. Winds will be 2 mph from the SE.