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      Elev 413 ft, 38.698 °N 90.055 °W

      Pontoon Beach, IL

      Pontoon Beach Station70°
      Updated: 8:17 AM CDT on September 11, 2026 (GMT -5)
      just now
      83°
      68°
      70
      Feels Like 70
      Fog
      N
      5
      Similar temperature is expected today
      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
        Sat 09/12
        High 83°f
         22% Precip. / 0 in
        Areas of patchy fog early. Generally cloudy. High 83F. Winds ESE at 5 to 10 mph.
        Tonight
        Sat 09/12
        Low 67°f
         24% Precip. / 0 in
        Cloudy skies early, followed by partial clearing. Low 67F. Winds light and variable.
        Tomorrow
        Sun 09/13
        High 91°f67°f
         15% Precip. / 0 in
        Sunshine and clouds mixed. A stray shower or thunderstorm is possible. High 91F. Winds light and variable.
        Hourly Forecast
        Now
        71°
        9AM
        72°
        10AM
        75°
        11AM
        78°
        12PM
        79°
        1PM
        80°
        2PM
        81°
        3PM
        82°
        4PM
        82°
        5PM
        82°
        6PM
        81°
        7PM
        35%
        78°
        7:14PM
        Sunset
        8PM
        75°
        9PM
        74°
        10PM
        72°
        11PM
        72°
        12AM
        71°
        1AM
        70°
        2AM
        70°
        3AM
        69°
        4AM
        69°
        5AM
        69°
        6AM
        68°
        6:39AM
        Sunrise
        7AM
        68°
        8AM
        71°
        Precipitation
        35%
        Pollen
        Ragweed Pollen
        High
        Air Quality
        41
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.97 in
        2. Visibility 1.5 miles
        3. Clouds Cloudy
        4. Dew Point70°F
        5. Humidity 96%
        6. Rainfall 0.11 in
        7. Snow Depth 0 in
         KCPS Station History
        Almanac for September 11, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 83°F 82°F 97°F 2013
        4. Low 68°F 62°F 49°F 1959
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 91°F 82°F 97°F
        4. Low 68°F 61°F 42°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:38 AM 7:14 PM
        3. Civil Twilight 6:11 AM 7:41 PM
        4. Nautical Twilight 5:39 AM 8:12PM
        5. Astronomical Twilight 5:07 AM 8:45 PM
        1. Length of Visible Light 13h 29m
        2. Length of Day 12h 36m
        3. Tomorrow will be 2 minutes 29 seconds shorter
        1. Moon 7:09 AM 7:24 PM
        2. Waxing Crescent0% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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