10-Day Weather Forecast - Sullivan, IL

Sunny, hot with highs in the mid 90s. Northwest winds 5 to 10 mph. Heat index values up to 105.

Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Northeast winds 5 to 10 mph.

Sunny. Not as warm with highs in the mid 80s. Northeast winds 5 to 10 mph.

Mostly clear. Lows around 60. East winds 5 to 10 mph.

Sunny. Highs in the mid 80s. East winds 5 to 10 mph.

Mostly clear. Lows in the lower 60s.

Mostly clear. Highs in the lower 90s.

Mostly clear. Hot. Lows in the lower 70s.

Mostly clear. Hot. Highs in the mid 90s.

Mostly clear in the evening, then becoming partly cloudy. A chance of showers. Lows in the upper 60s. Chance of rain 40 percent.

Mostly sunny. A chance of showers in the morning. Not as warm with highs in the mid 80s. Chance of rain 40 percent.

Mostly clear. Lows around 60.

Mostly clear. Highs in the mid 80s.

Clear. Low temperature around 62F. Dew point will be around 60F with an average humidity of 79%. Winds will be 3 mph from the E.

Sunny. High temperature around 87F. Dew point will be around 61F with an average humidity of 57%. Winds will be 2 mph from the SE.

Clear. Low temperature around 66F. Dew point will be around 60F with an average humidity of 72%. Winds will be 3 mph from the SE.

Sunny. High temperature around 89F. Dew point will be around 64F with an average humidity of 56%. Winds will be 4 mph from the S.

Clear. Low temperature around 68F. Dew point will be around 63F with an average humidity of 72%. Winds will be 3 mph from the S.