10-Day Weather Forecast - Winthrop Harbor, IL

Mostly cloudy. A slight chance of rain early in the afternoon. A slight chance of snow in the afternoon. Highs in the upper 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph becoming west in the afternoon. Chance of precipitation 20 percent.

Mostly clear and blustery. Lows around 13. West winds 15 to 20 mph with gusts up to 30 mph.

Sunny. Highs in the mid 20s. Northwest winds 10 to 15 mph becoming west 5 to 10 mph in the afternoon.

Partly cloudy in the evening then becoming mostly cloudy. Lows around 20.

Mostly cloudy. Highs in the upper 30s.

Mostly cloudy. Near steady temperature in the mid 30s.

Mostly cloudy. Highs in the mid 40s.

Mostly cloudy. Lows in the lower 30s.

Mostly cloudy. Highs in the upper 40s.

Mostly cloudy. A chance of rain in the evening. Near steady temperature in the lower 40s. Chance of precipitation 30 percent.

Mostly cloudy. Highs in the lower 50s.

Cloudy. Low temperature around 40F. Dew point will be around 41F with an average humidity of 84%. Winds will be 7 mph from the NW.

Partly cloudy. High temperature around 46F. Dew point will be around 34F with an average humidity of 70%. Winds will be 5 mph from the NW.

Partly cloudy. Low temperature around 38F. Dew point will be around 34F with an average humidity of 79%. Winds will be 3 mph from the E.

Partly cloudy. High temperature around 45F. Dew point will be around 34F with an average humidity of 73%. Winds will be 2 mph from the N.

Partly cloudy. Low temperature around 34F. Dew point will be around 31F with an average humidity of 76%. Winds will be 6 mph from the N.

Cloudy. High temperature around 40F. Dew point will be around 28F with an average humidity of 67%. Winds will be 7 mph from the N.

Partly cloudy. Low temperature around 29F. Dew point will be around 24F with an average humidity of 71%. Winds will be 6 mph from the N.