10-Day Weather Forecast - New Grand Chain, IL

Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Highest heat index readings heat index readings up to 105 in the afternoon.

Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 50 percent.

Showers. Highs in the upper 80s. West winds around 5 mph. Chance of rain 90 percent.

Mostly cloudy. A chance of showers in the evening. Lows in the upper 60s. North winds around 5 mph in the evening, becoming light and variable. Chance of rain 40 percent.

Partly sunny. Highs in the upper 80s.

Partly cloudy in the evening, then clearing. Lows in the upper 60s.

Sunny. Highs in the lower 90s.

Partly cloudy. Lows around 70.

Partly cloudy. Highs in the lower 90s.

Mostly clear. Lows in the upper 60s.

Mostly clear. Highs in the lower 90s.

Mostly clear. Lows in the upper 60s.

Sunny. A chance of showers in the afternoon. Highs in the lower 90s. Chance of rain 30 percent.

Clear with a 30% chance for rain and thunderstorms. Low temperature around 60F. Dew point will be around 64F with an average humidity of 88%. Winds will be 5 mph from the N.

Sunny with a 30% chance for rain and thunderstorms. High temperature around 83F. Dew point will be around 63F with an average humidity of 69%. Winds will be 4 mph from the N.

Clear with a 30% chance for rain and thunderstorms. Low temperature around 61F. Dew point will be around 62F with an average humidity of 83%. Winds will be 3 mph from the NE.

Sunny with a 25% chance for rain and thunderstorms. High temperature around 83F. Dew point will be around 63F with an average humidity of 69%. Winds will be 2 mph from the NE.

Clear with a 30% chance for rain and thunderstorms. Low temperature around 60F. Dew point will be around 62F with an average humidity of 85%. Winds will be 3 mph from the N.