10-Day Weather Forecast - Summit, IL

Showers with a chance of thunderstorms in the morning then showers likely in the afternoon. Much cooler. Less humid with highs in the upper 60s. Temperature falling to around 50 in the afternoon. West winds 15 to 20 mph becoming northwest in the afternoon. Chance of rain 90 percent.

Mostly cloudy in the evening then clearing. Much cooler with lows in the lower 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph.

Sunny cooler with highs in the mid 50s. West winds 5 to 10 mph.

Partly cloudy in the evening then becoming mostly cloudy. Not as cool with lows in the mid 40s. South winds 15 to 20 mph with gusts up to 30 mph.

Mostly cloudy. Highs in the lower 60s. Lows in the upper 30s.

Mostly cloudy. Highs in the lower 60s. Lows in the upper 30s.

Mostly sunny. Highs in the upper 60s.

Partly cloudy in the evening then mostly cloudy with a chance of rain with a slight chance of thunderstorms after midnight. Not as cool with lows in the lower 50s. Chance of rain 30 percent.

Rain with a slight chance of thunderstorms in the morning then rain in the afternoon. Breezy with highs in the mid 60s. Chance of rain 80 percent.

Mostly cloudy. A chance of rain and snow in the evening then a slight chance of snow after midnight. Much cooler with lows in the lower 20s. Chance of precipitation 40 percent.

Sunny. Much cooler with highs in the mid 30s.

Mostly clear in the evening then becoming partly cloudy. Lows around 20.

Mostly sunny in the morning then becoming mostly cloudy. Highs in the lower 40s.

Cloudy. Low temperature around 31F. Dew point will be around 24F with an average humidity of 67%. Winds will be 7 mph from the S.

Cloudy with a slight chance of rain-snow mix. Chance of precipitation 25%. High temperature around 49F. Dew point will be around 33F with an average humidity of 71%. Winds will be 6 mph from the S.

Partly cloudy. Low temperature around 37F. Dew point will be around 35F with an average humidity of 78%. Winds will be 4 mph from the SE.

Cloudy. High temperature around 58F. Dew point will be around 42F with an average humidity of 77%. Winds will be 7 mph from the S.

Partly cloudy. Low temperature around 48F. Dew point will be around 45F with an average humidity of 79%. Winds will be 7 mph from the S.