10-Day Weather Forecast - Sparta, IL

Mostly sunny. Isolated showers and thunderstorms this afternoon. Hot with highs in the upper 90s. Northwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 110.

Partly cloudy with isolated showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the lower 70s. North winds around 5 mph. Chance of rain 20 percent. Heat index values up to 104 early in the evening.

Sunny. Highs around 90. Northeast winds 5 to 10 mph.

Mostly clear. Lows in the lower 60s. Northeast winds 5 to 10 mph.

Sunny. Highs in the upper 80s. East winds around 5 mph.

Mostly clear. Lows in the mid 60s. Heat index values up to 100.

Mostly clear. Highs in the mid 90s. Heat index values up to 100.

Mostly clear. Hot. Lows in the lower 70s. Heat index values up to 105.

Mostly clear. Hot. Highs in the upper 90s. Heat index values up to 105.

Mostly clear in the evening, then partly cloudy with a chance of showers after midnight. Lows around 70. Chance of rain 40 percent. Heat index values up to 100 early in the evening.

Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 90. Chance of rain 50 percent.

Partly cloudy in the evening, then mostly clear with a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent.

Sunny. A slight chance of showers in the morning. Highs in the upper 80s. Chance of rain 20 percent.

Clear. Low temperature around 65F. Dew point will be around 63F with an average humidity of 71%. Winds will be 2 mph from the E.

Sunny. High temperature around 88F. Dew point will be around 64F with an average humidity of 61%. Winds will be 3 mph from the S.

Clear. Low temperature around 66F. Dew point will be around 62F with an average humidity of 67%. Winds will be 4 mph from the SE.

Sunny. High temperature around 90F. Dew point will be around 65F with an average humidity of 60%. Winds will be 5 mph from the S.

Clear. Low temperature around 67F. Dew point will be around 64F with an average humidity of 68%. Winds will be 4 mph from the S.