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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 Station63°
      Updated: 1:23 PM CDT on September 30, 2026 (GMT -5)
      4 minutes ago
      69°
      60°
      63
      Feels Like 63
      Cloudy
      N
      12
      Gusts 23 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 65°f
         42% Precip. / 0.01 in
        Cloudy with a few showers. High around 65F. Winds SSW at 10 to 15 mph. Chance of rain 40%.
        Tonight
        Wed 09/30
        Low 62°f
         99% Precip. / 0.62 in
        Cloudy with periods of rain. Low 62F. Winds SW at 5 to 10 mph. Chance of rain 100%. Rainfall near a half an inch.
        Tomorrow
        Thu 10/01
        High 67°f52°f
         88% Precip. / 0.67 in
        Rain. High 67F. Winds W at 5 to 10 mph. Chance of rain 90%. Rainfall around a half an inch. Locally heavy rainfall possible.
        Hourly Forecast
        Now
        63°
        2PM
        64°
        3PM
        44%
        64°
        4PM
        38%
        65°
        5PM
        65°
        6PM
        42%
        64°
        6:34PM
        Sunset
        7PM
        42%
        64°
        8PM
        63°
        9PM
        36%
        63°
        10PM
        46%
        63°
        11PM
        66%
        63°
        12AM
        93%
        64°
        1AM
        99%
        64°
        2AM
        82%
        64°
        3AM
        76%
        64°
        4AM
        64%
        64°
        5AM
        88%
        63°
        6AM
        79%
        63°
        6:48AM
        Sunrise
        7AM
        84%
        63°
        8AM
        64%
        64°
        9AM
        88%
        65°
        10AM
        88%
        65°
        11AM
        85%
        66°
        12PM
        88%
        66°
        1PM
        83%
        67°
        Precipitation
        99%
        Rain expected around 1:45 PM
        Pollen
        None
        Air Quality
        32
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 29.86 in
        2. Visibility 5 miles
        3. Clouds Cloudy
        4. Dew Point63°F
        5. Humidity 98%
        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 0.64 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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