Winthrop Harbor, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Saturday
    50% Chance of Storms
    72°
    Forecast night icon
    Night
    50% Chance of Storms
    53°
    Saturday 5/4
    Day
    72°
    50% Chance of Storms
    Forecast day icon
    Night
    53°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny in the morning then becoming partly cloudy late in the morning then becoming mostly cloudy late in the afternoon. Scattered thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs in the upper 70s inland but only in the upper 60s near the lake. South winds 10 to 15 mph. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy. Scattered thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Lows around 50. Northwest winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of precipitation 50 percent.
  • Forecast day icon
    Sunday
    Mostly Sunny
    60°
    Forecast night icon
    Night
    Partly Cloudy
    45°
    Sunday 5/5
    Day
    60°
    Mostly Sunny
    Forecast day icon
    Night
    45°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 60s inland but only in the upper 50s near the lake. Northeast winds 5 to 10 mph.
    Night Details
    Partly cloudy in the evening then clearing. Lows in the mid 40s. Northeast winds around 5 mph.
  • Forecast day icon
    Monday
    Mostly Sunny
    64°
    Forecast night icon
    Night
    50% Chance Rain Showers
    53°
    Monday 5/6
    Day
    64°
    Mostly Sunny
    Forecast day icon
    Night
    53°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 60s inland but only in the upper 50s near the lake. East winds 10 to 15 mph.
    Night Details
    Partly cloudy with a slight chance of showers in the evening then mostly cloudy with a chance of showers after midnight. Lows in the mid 50s. Chance of precipitation 50 percent.
  • Forecast day icon
    Tuesday
    Thunderstorms
    68°
    Forecast night icon
    Night
    40% Chance of Storms
    55°
    Tuesday 5/7
    Day
    68°
    Thunderstorms
    Forecast day icon
    Night
    55°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Showers with a slight chance of thunderstorms in the morning then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 90 percent.
    Night Details
    Mostly clear. A chance of thunderstorms in the evening. Lows in the mid 50s. Chance of precipitation 40 percent.
  • Forecast day icon
    Wednesday
    50% Chance Rain Showers
    73°
    Forecast night icon
    Night
    60% Chance of Storms
    48°
    Wednesday 5/8
    Day
    73°
    50% Chance Rain Showers
    Forecast day icon
    Night
    48°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then mostly cloudy with a chance of showers in the afternoon. Highs in the mid 70s inland but only in the lower 70s near the lake. Chance of precipitation 50 percent.
    Night Details
    Mostly cloudy. Showers likely with a chance of thunderstorms in the evening then a chance of showers after midnight. Lows in the lower 50s. Chance of precipitation 60 percent.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    59°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Thursday 5/9
    Day
    59°
    30% Chance Rain Showers
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. A chance of showers in the afternoon. Highs in the lower 70s. Chance of precipitation 30 percent.
    Night Details
    Partly cloudy. Lows in the upper 40s.
  • Forecast day icon
    Friday
    30% Chance Rain Showers
    63°
    Forecast night icon
    Night
    30% Chance of Rain
    42°
    Friday 5/10
    Day
    63°
    30% Chance Rain Showers
    Forecast day icon
    Night
    42°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. A chance of showers in the afternoon. Highs in the mid 60s inland but only around 60 near the lake. Chance of precipitation 30 percent.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 42F. Dew point will be around 42F with an average humidity of 68%. Winds will be 8 mph from the NW.
  • Forecast day icon
    Saturday
    Sunny
    62°
    Forecast night icon
    Night
    Clear
    46°
    Saturday 5/11
    Day
    62°
    Sunny
    Forecast day icon
    Night
    46°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 62F. Dew point will be around 37F with an average humidity of 50%. Winds will be 9 mph from the NW.
    Night Details
    Clear. Low temperature around 46F. Dew point will be around 42F with an average humidity of 70%. Winds will be 7 mph from the W.
  • Forecast day icon
    Sunday
    Sunny
    67°
    Forecast night icon
    Night
    Clear
    49°
    Sunday 5/12
    Day
    67°
    Sunny
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 67F. Dew point will be around 43F with an average humidity of 54%. Winds will be 7 mph from the W.
    Night Details
    Clear. Low temperature around 49F. Dew point will be around 46F with an average humidity of 71%. Winds will be 3 mph from the W.
  • Forecast day icon
    Monday
    30% Chance of Rain
    64°
    Forecast night icon
    Night
    40% Chance of Rain
    49°
    Monday 5/13
    Day
    64°
    30% Chance of Rain
    Forecast day icon
    Night
    49°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 64F. Dew point will be around 44F with an average humidity of 57%. Winds will be 2 mph from the NW.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 49F. Dew point will be around 44F with an average humidity of 69%. Winds will be 1 mph from the W.