10-Day Weather Forecast - Summit, IL

Mostly sunny. A slight chance of showers and thunderstorms in the morning then a chance of showers and thunderstorms in the afternoon. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.

Showers and thunderstorms likely in the evening then showers with a chance of thunderstorms after midnight. Lows in the mid 50s. South winds 10 to 15 mph. Chance of rain 90 percent.

A chance of thunderstorms. Showers. Much cooler with highs in the mid 60s. Temperature falling to around 60 in the afternoon. South winds 10 to 15 mph becoming northwest in the afternoon. Chance of rain near 100 percent.

Showers likely with a slight chance of thunderstorms in the evening then a slight chance of showers after midnight. Cooler with lows in the mid 40s. Chance of rain 70 percent.

Partly sunny in the morning then becoming mostly cloudy. A 20 percent chance of showers. Highs in the upper 50s.

Mostly cloudy. A chance of showers mainly in the evening. Lows in the lower 40s. Chance of rain 30 percent.

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 20 percent.

Mostly clear. Lows in the mid 40s.

Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.

Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening then a slight chance of showers after midnight. Lows in the lower 50s. Chance of rain 30 percent.

Sunny. Highs in the mid 70s.

Mostly clear. Low temperature around 53F. Dew point will be around 52F with an average humidity of 78%. Winds will be 4 mph from the SE.

Mostly cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 71F. Dew point will be around 57F with an average humidity of 74%. Winds will be 4 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 52F. Dew point will be around 54F with an average humidity of 82%. Winds will be 2 mph from the NE.

Partly cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 67F. Dew point will be around 53F with an average humidity of 73%. Winds will be 6 mph from the N.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 49F. Dew point will be around 49F with an average humidity of 78%. Winds will be 3 mph from the N.

Sunny. High temperature around 69F. Dew point will be around 50F with an average humidity of 65%. Winds will be 5 mph from the N.

Clear. Low temperature around 49F. Dew point will be around 48F with an average humidity of 75%. Winds will be 2 mph from the N.