10-Day Weather Forecast - Prairie du Rocher, IL

Sunny. Isolated showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107.

Mostly clear. Lows in the lower 70s. Southwest winds around 5 mph. Heat index values up to 105 early in the evening.

Mostly sunny. Hot with highs in the upper 90s. Northwest winds around 5 mph. Heat index values up to 106.

Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. North winds around 5 mph. Heat index values up to 102 early in the evening.

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

Mostly clear. Lows in the upper 60s. Heat index values up to 105.

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

Mostly clear. Lows in the upper 60s. Heat index values up to 105.

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

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. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening.

Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent.

Clear with a 25% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 70F with an average humidity of 76%. Winds will be 3 mph from the SW.

Sunny. High temperature around 89F. Dew point will be around 71F with an average humidity of 66%. Winds will be 4 mph from the SW.

Clear. Low temperature around 69F. Dew point will be around 69F with an average humidity of 79%. Winds will be 2 mph from the SE.

Mostly sunny. High temperature around 88F. Dew point will be around 70F with an average humidity of 69%. Winds will be 4 mph from the S.

Clear. Low temperature around 68F. Dew point will be around 67F with an average humidity of 77%. Winds will be 3 mph from the SE.