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      Elev 735 ft, 42.254 °N 88.184 °W

      Port Barrington, IL

      Williams Park Station81°
      Updated: 3:54 PM CDT on September 15, 2026 (GMT -5)
      6 minutes ago
      83°
      62°
      81
      Feels Like 86
      Mostly Cloudy
      N
      10
      Gusts 16 mph
      Lower temperature is expected tomorrow
      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
        Tonight
        Wed 09/16
        Low 61°f
         30% Precip. / 0.01 in
        Cloudy skies this evening. A few showers developing late. Low 61F. Winds N at 10 to 15 mph. Chance of rain 30%.
        Tomorrow
        Thu 09/17
        High 71°f
         24% Precip. / 0 in
        Cloudy. Slight chance of a rain shower. High 71F. Winds ENE at 5 to 10 mph.
        Tomorrow night
        Thu 09/17
        Low 63°f
         73% Precip. / 0.23 in
        Cloudy skies early followed by thunderstorms late. Low 63F. Winds light and variable. Chance of rain 70%.
        Hourly Forecast
        Now
        81°
        4PM
        81°
        5PM
        79°
        6PM
        78°
        7PM
        73°
        7:02PM
        Sunset
        8PM
        70°
        9PM
        69°
        10PM
        68°
        11PM
        67°
        12AM
        66°
        1AM
        65°
        2AM
        30%
        64°
        3AM
        63°
        4AM
        63°
        5AM
        62°
        6AM
        62°
        6:34AM
        Sunrise
        7AM
        62°
        8AM
        64°
        9AM
        66°
        10AM
        68°
        11AM
        70°
        12PM
        70°
        1PM
        70°
        2PM
        70°
        3PM
        70°
        Precipitation
        30%
        Pollen
        None
        Air Quality
        25
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.04 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point70°F
        5. Humidity 69%
        6. Rainfall 0.62 in
        7. Snow Depth 0 in
         KPWK Station History
        Almanac for September 15, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 83°F 73°F 88°F 1991
        4. Low 62°F 54°F 36°F 2007
        5. Rain/Snow Depth
        6. Precipitation 0.01 in 3.3 in -
        7. Snow 0 in 0 in -
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 73°F 89°F
        4. Low 62°F 54°F 36°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:32 AM 7:02 PM
        3. Civil Twilight 6:04 AM 7:30 PM
        4. Nautical Twilight 5:31 AM 8:03PM
        5. Astronomical Twilight 4:57 AM 8:37 PM
        1. Length of Visible Light 13h 25m
        2. Length of Day 12h 29m
        3. Tomorrow will be 2 minutes 48 seconds shorter
        1. Moon 11:35 AM 8:53 PM
        2. Waxing Crescent21% 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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