10-Day Weather Forecast - Sullivan, IL

Sunny. Highs in the lower 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

Clear. Lows in the lower 40s. Southwest winds 10 to 15 mph.

Sunny. Not as cool with highs in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph.

Mostly clear in the evening then becoming partly cloudy. Not as cool with lows in the upper 50s. South winds 10 to 15 mph with gusts up to 25 mph.

Partly sunny in the morning then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent.

Showers with a chance of thunderstorms. Breezy with lows in the lower 50s. Chance of rain near 100 percent.

Showers mainly in the morning. Cooler with highs in the mid 60s. Chance of rain near 100 percent.

Partly cloudy with a chance of rain in the evening then mostly clear after midnight. Much cooler with lows in the upper 20s. Chance of rain 30 percent.

Mostly sunny. Much cooler with highs in the upper 40s.

Mostly cloudy and breezy. Lows in the mid 30s. Highs in the lower 60s.

Mostly cloudy and breezy. Lows in the mid 30s. Highs in the lower 60s.

Mostly cloudy and breezy. Lows in the mid 30s. Highs in the lower 60s.

Mostly cloudy. Cooler with highs around 50.

Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 39F. Dew point will be around 32F with an average humidity of 73%. Winds will be 8 mph from the E.

Cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 50F. Dew point will be around 41F with an average humidity of 80%. Winds will be 9 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 33F. Dew point will be around 34F with an average humidity of 79%. Winds will be 7 mph from the W.

Cloudy. High temperature around 37F. Dew point will be around 25F with an average humidity of 66%. Winds will be 12 mph from the NW.

Mostly cloudy. Low temperature around 25F. Dew point will be around 18F with an average humidity of 65%. Winds will be 6 mph from the NW.