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      River Flood Warning
      until 7:15 AM CDT
      Elev 660 ft, 42.477 °N 87.826 °W

      Winthrop Harbor, IL

      Winthrop Harbor Station64°
      Updated: 2:48 PM CDT on September 30, 2026 (GMT -5)
      9 minutes ago
      69°
      60°
      64
      Feels Like 64
      Cloudy
      N
      11
      Gusts 20 mph
      Lower temperature is expected today
      Wundermap
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Wed 09/30
        High 66°f
         48% Precip. / 0.01 in
        Cloudy with occasional rain showers. High 66F. Winds SSW at 10 to 15 mph. Chance of rain 50%.
        Tonight
        Wed 09/30
        Low 62°f
         98% Precip. / 0.53 in
        Periods of rain. Low 62F. Winds SW at 5 to 10 mph. Chance of rain 100%. Rainfall around a half an inch.
        Tomorrow
        Thu 10/01
        High 67°f53°f
         90% Precip. / 0.61 in
        Rain. High 67F. SSW winds shifting to NNW at 10 to 15 mph. Chance of rain 90%. Rainfall near a half an inch. Locally heavy rainfall possible.
        Hourly Forecast
        Now
        65°
        3PM
        65°
        4PM
        37%
        65°
        5PM
        48%
        64°
        6PM
        64°
        6:34PM
        Sunset
        7PM
        64°
        8PM
        63°
        9PM
        66%
        63°
        10PM
        50%
        63°
        11PM
        80%
        63°
        12AM
        95%
        64°
        1AM
        98%
        64°
        2AM
        79%
        64°
        3AM
        72%
        64°
        4AM
        82%
        64°
        5AM
        78%
        64°
        6AM
        70%
        64°
        6:48AM
        Sunrise
        7AM
        79%
        64°
        8AM
        72%
        65°
        9AM
        89%
        65°
        10AM
        89%
        65°
        11AM
        91%
        65°
        12PM
        89%
        67°
        1PM
        81%
        67°
        2PM
        71%
        67°
        Precipitation
        98%
        Rain possible around 4:30 PM
        Pollen
        None
        Air Quality
        32
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 29.86 in
        2. Visibility 8 miles
        3. Clouds Cloudy
        4. Dew Point63°F
        5. Humidity 92%
        6. Rainfall 0.28 in
        7. Snow Depth 0 in
         KUGN Station History
        Almanac for September 30, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 67°F 91°F 1953
        4. Low 60°F 51°F 30°F 1984
        5. Rain/Snow Depth
        6. Precipitation 0.54 in 2.9 in -
        7. Snow 0 in - in -
        Almanac for October 1, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 66°F 85°F
        4. Low 59°F 50°F 30°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:47 AM 6:34 PM
        3. Civil Twilight 6:19 AM 7:02 PM
        4. Nautical Twilight 5:46 AM 7:34PM
        5. Astronomical Twilight 5:13 AM 8:07 PM
        1. Length of Visible Light 12h 42m
        2. Length of Day 11h 46m
        3. Tomorrow will be 2 minutes 50 seconds shorter
        1. Moon 8:33 PM 11:38 AM
        2. Waning Gibbous77% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
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