10-Day Weather Forecast - Winthrop Harbor, IL

Partly cloudy in the morning then becoming mostly cloudy. Smoke early in the morning then areas of smoke in the late morning and early afternoon. Patchy smoke late. Scattered showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.

Mostly clear. Scattered showers and thunderstorms early in the evening. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.

Mostly sunny in the morning then becoming partly cloudy. Showers and thunderstorms likely in the afternoon. Humid with highs in the upper 80s. West winds 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation 60 percent.

Mostly clear. Lows in the mid 60s. Northeast winds 5 to 10 mph.

Mostly sunny. Highs in the lower 80s inland but only in the upper 70s near the lake.

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 60s.

Mostly cloudy. Highs in the upper 80s.

Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of precipitation 50 percent.

Partly cloudy. Highs in the mid 80s.

Mostly clear. Lows in the lower 60s.

Mostly sunny. Highs in the upper 70s.

Mostly clear. Lows around 60.

Mostly sunny. Highs in the lower 80s.

Mostly clear. Low temperature around 64F. Dew point will be around 63F with an average humidity of 83%. Winds will be 1 mph from the W.

Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 83F. Dew point will be around 65F with an average humidity of 65%. Winds will be 2 mph from the E.

Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 66F. Dew point will be around 64F with an average humidity of 83%. Winds will be 2 mph from the SE.

Sunny. High temperature around 83F. Dew point will be around 67F with an average humidity of 68%. Winds will be 2 mph from the NE.

Clear. Low temperature around 65F. Dew point will be around 64F with an average humidity of 83%. Winds will be 3 mph from the N.