10-Day Weather Forecast - Summit, IL
- 86|69°F50% Chance of StormsHourly details
Today
86°FMostly sunny late this morning then mostly cloudy with a chance of showers and thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the mid 80s. Southwest winds around 5 mph becoming north this afternoon. Chance of rain 50 percent.
Tonight
69°FCloudy with a chance of thunderstorms. A chance of showers in the evening then showers after midnight. Some thunderstorms may produce heavy rainfall. Lows in the upper 60s. East winds around 5 mph. Chance of rain 90 percent.
- 81|68°FThunderstormsHourly details
Day
81°FMostly cloudy. Showers with a chance of thunderstorms in the morning then a chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 90 percent.
Night
68°FShowers likely with a chance of thunderstorms. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 70 percent.
Weekend Weather
- 84|70°F50% Chance of StormsHourly details
Day
84°FMostly cloudy in the morning then becoming partly sunny. A chance of showers and thunderstorms. Humid with highs in the upper 80s. South winds around 5 mph. Chance of rain 50 percent.
Night
70°FPartly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent.
- 96|73°FHot and HumidHourly details
Day
96°FMostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110.
Night
73°FMostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110.
- 97|74°FHot and HumidHourly details
Day
97°FMostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110.
Night
74°FClear. Lows in the mid 70s. Heat index values up to 110 early in the evening.
- 98|76°FHot and HumidHourly details
Day
98°FSunny hot with highs in the upper 90s. Heat index values up to 110 in the afternoon.
Night
76°FClear. Lows in the mid 70s. Heat index values up to 115 early in the evening.
- 98|76°FHot and Humid
Day
98°FSunny hot with highs in the upper 90s. Heat index values up to 110 in the afternoon.
Night
76°FMostly clear. Low temperature around 76F. Dew point will be around 73F with an average humidity of 73%. Winds will be 4 mph from the S.
- 96|76°FHot and Humid
Day
96°FSunny. High temperature around 96F. Dew point will be around 76F with an average humidity of 65%. Winds will be 4 mph from the S.
Night
76°FClear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 76F. Dew point will be around 75F with an average humidity of 79%. Winds will be 3 mph from the SE.
- 96|75°F30% Chance of Rain
Day
96°FSunny with a 30% chance for rain and thunderstorms. High temperature around 96F. Dew point will be around 76F with an average humidity of 66%. Winds will be 1 mph from the S.
Night
75°FClear with a 35% chance for rain and thunderstorms. Low temperature around 75F. Dew point will be around 75F with an average humidity of 80%. Winds will be 1 mph from the E.
Weekend Weather
- 93|73°F40% Chance of Rain
Day
93°FSunny with a 35% chance for rain and thunderstorms. High temperature around 93F. Dew point will be around 76F with an average humidity of 70%. Winds will be 1 mph from the N.
Night
73°FClear with a 45% chance for rain and thunderstorms. Low temperature around 72F. Dew point will be around 74F with an average humidity of 85%. Winds will be 3 mph from the NE.













