10-Day Weather Forecast - Belleville, IL

Partly sunny. Highs in the mid 80s. North winds around 5 mph.

Partly cloudy in the evening then clearing. Lows in the upper 60s. Northeast winds around 5 mph in the evening becoming light and variable.

Mostly sunny. Highs in the upper 80s. Light and variable winds becoming south around 5 mph in the afternoon.

Mostly clear. Lows in the lower 70s. South winds around 5 mph.

Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 100.

Partly cloudy in the evening then becoming mostly cloudy. A chance of thunderstorms. A chance of showers in the evening then showers likely after midnight. Lows in the lower 70s. Chance of rain 70 percent. Heat index values up to 100 early in the evening.

Showers likely with a chance of thunderstorms. Highs around 90. Lows in the lower 70s. Chance of rain 70 percent. Heat index values up to 100.

Showers likely with a chance of thunderstorms. Highs around 90. Lows in the lower 70s. Chance of rain 70 percent. Heat index values up to 100.

Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent.

Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening then partly cloudy with a slight chance of showers after midnight. Lows around 70. Chance of rain 50 percent.

Mostly sunny. A slight chance of showers in the morning. Highs around 90. Chance of rain 20 percent.

Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 100.

Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 100.

Clear with widespread thunderstorms. Chance of storms 90%. Low temperature around 71F. Dew point will be around 72F with an average humidity of 87%. Winds will be 1 mph from the NE.

Sunny with numerous thunderstorms. Chance of storms 80%. High temperature around 89F. Dew point will be around 73F with an average humidity of 74%. Winds will be 2 mph from the NE.

Clear with numerous thunderstorms. Chance of storms 80%. Low temperature around 68F. Dew point will be around 70F with an average humidity of 85%. Winds will be 2 mph from the E.

Sunny with widespread thunderstorms. Chance of storms 100%. High temperature around 87F. Dew point will be around 71F with an average humidity of 73%. Winds will be 2 mph from the NE.

Clear with widespread thunderstorms. Chance of storms 100%. Low temperature around 67F. Dew point will be around 69F with an average humidity of 86%. Winds will be 2 mph from the NE.