10-Day Weather Forecast - Grafton, IL

Cloudy. Showers and thunderstorms in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Much cooler with highs in the upper 70s. North winds 5 to 10 mph. Chance of rain 90 percent.

Cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

A chance of thunderstorms. Showers. Highs around 80. Southeast winds 5 to 10 mph, becoming southwest in the afternoon. Chance of rain near 100 percent.

Mostly cloudy. A chance of showers and thunderstorms in the evening. Much cooler with lows in the mid 40s. Northwest winds 15 to 20 mph. Chance of rain 50 percent.

Mostly sunny. Much cooler with highs around 60.

Mostly clear. Cooler with lows in the mid 30s.

Clear. Highs in the lower 60s.

Clear. Lows in the upper 30s.

Sunny. Highs around 70.

Partly cloudy. Lows in the mid 40s.

Partly cloudy. Highs in the lower 70s.

Partly cloudy. Lows in the mid 40s.

Mostly sunny. Highs in the upper 70s.

Partly cloudy. Low temperature around 59F. Dew point will be around 56F with an average humidity of 78%. Winds will be 8 mph from the SE.

Partly cloudy. High temperature around 76F. Dew point will be around 58F with an average humidity of 66%. Winds will be 10 mph from the SSE.

Cloudy. Low temperature around 62F. Dew point will be around 56F with an average humidity of 72%. Winds will be 9 mph from the SSE.

Partly cloudy. High temperature around 77F. Dew point will be around 60F with an average humidity of 64%. Winds will be 13 mph from the SSE.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 62F. Dew point will be around 59F with an average humidity of 85%. Winds will be 11 mph from the S.