10-Day Weather Forecast - Sullivan, IL

Partly sunny. Highs around 80. West winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 40s. North winds 5 to 10 mph with gusts up to 20 mph becoming northeast after midnight.

Sunny. Highs in the upper 70s. East winds around 5 mph becoming southwest in the afternoon.

Mostly clear. Not as cool with lows in the mid 50s. South winds 10 to 15 mph.

Mostly sunny. Highs in the lower 80s. Southwest winds 10 to 15 mph becoming west 15 to 20 mph in the afternoon.

Mostly cloudy in the evening then clearing. Much cooler with lows in the mid 30s.

Sunny. Much cooler with highs in the lower 50s.

Mostly clear in the evening then becoming mostly cloudy. Lows in the mid 30s.

Mostly cloudy. Highs in the upper 50s. Lows in the upper 30s.

Mostly cloudy. Highs in the upper 50s. Lows in the upper 30s.

Mostly cloudy. Highs in the upper 50s. Lows in the upper 30s.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s.

Mostly sunny. Not as cool with highs in the lower 70s.

Clear with a chance of rain. Chance of precipitation 50%. Low temperature around 42F. Dew point will be around 41F with an average humidity of 64%. Winds will be 6 mph from the NW.

Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 51F. Dew point will be around 29F with an average humidity of 49%. Winds will be 8 mph from the N.

Clear. Low temperature around 33F. Dew point will be around 26F with an average humidity of 57%. Winds will be 4 mph from the NE.

Sunny. High temperature around 51F. Dew point will be around 27F with an average humidity of 50%. Winds will be 4 mph from the SE.

Partly cloudy. Low temperature around 39F. Dew point will be around 31F with an average humidity of 63%. Winds will be 4 mph from the SE.