10-Day Weather Forecast - Downers Grove, IL

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog early in the morning. Humid with highs in the lower 90s. Southwest winds around 5 mph increasing to around 10 mph in the afternoon. Heat index values up to 101.

Mostly cloudy. A slight chance of showers and thunderstorms early in the evening then a chance of showers and thunderstorms in the late evening and overnight. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of precipitation 40 percent.

Mostly cloudy in the morning then clearing. A chance of showers and thunderstorms. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph increasing to west 10 to 15 mph in the afternoon. Chance of precipitation 50 percent. Heat index values up to 104.

Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. West winds around 10 mph becoming northwest after midnight. Chance of precipitation 30 percent.

Partly cloudy in the morning then clearing. Highs in the mid 80s.

Mostly clear. Lows in the mid 60s.

Sunny. Highs in the lower 80s.

Mostly clear. Lows in the mid 60s.

Mostly sunny in the morning then becoming partly cloudy. Highs in the mid 80s.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 60s.

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows in the upper 60s.

Partly cloudy. Highs in the mid 80s.

Clear with a 35% chance for rain and thunderstorms. Low temperature around 65F. Dew point will be around 61F with an average humidity of 75%. Winds will be 4 mph from the N.

Sunny with a 25% chance for rain and thunderstorms. High temperature around 83F. Dew point will be around 65F with an average humidity of 66%. Winds will be 3 mph from the NE.

Clear with a 25% chance for rain and thunderstorms. Low temperature around 65F. Dew point will be around 60F with an average humidity of 73%. Winds will be 2 mph from the NE.

Sunny. High temperature around 83F. Dew point will be around 65F with an average humidity of 67%. Winds will be 2 mph from the S.

Clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 66F. Dew point will be around 62F with an average humidity of 73%. Winds will be 3 mph from the S.