10-Day Weather Forecast - Sycamore, IL

Mostly sunny through mid morning then becoming partly cloudy. A chance of showers and thunderstorms late in the afternoon. Breezy. Continued hot and humid with highs in the lower 90s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 40 percent. Heat index values up to 101.

Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. South winds around 10 mph. Chance of precipitation 50 percent.

Mostly cloudy. A chance of showers and thunderstorms. Highs in the mid 80s. South winds around 10 mph. Chance of precipitation 50 percent.

Mostly cloudy. A chance of showers and thunderstorms. Lows around 70. South winds around 5 mph. Chance of precipitation 50 percent.

Mostly cloudy with a chance of thunderstorms. A chance of showers in the morning then showers likely in the afternoon. Highs in the lower 80s. Chance of precipitation 60 percent.

Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of precipitation 50 percent.

Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of precipitation 40 percent.

Mostly cloudy. Lows in the mid 60s.

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows in the mid 60s.

Partly cloudy. Highs in the mid 80s.

Partly cloudy. Lows in the upper 60s.

Partly cloudy. Highs in the upper 80s.

Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 72F. Dew point will be around 71F with an average humidity of 87%. Winds will be 1 mph from the E.

Mostly sunny with a 25% chance for rain and thunderstorms. High temperature around 87F. Dew point will be around 72F with an average humidity of 73%. Winds will be 1 mph from the NE.

Mostly clear with a 25% chance for rain and thunderstorms. Low temperature around 70F. Dew point will be around 70F with an average humidity of 84%. Winds will be 2 mph from the NE.

Sunny with widely scattered thunderstorms. Chance of storms 25%. High temperature around 87F. Dew point will be around 70F with an average humidity of 70%. Winds will be 3 mph from the N.

Clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 69F. Dew point will be around 68F with an average humidity of 82%. Winds will be 4 mph from the NE.