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      Elev 663 ft, 41.857 °N 87.885 °W

      Westchester, IL

      Updated: 11:48 PM CDT on September 17, 2026 (GMT -5)
      8 minutes ago
      82°
      65°
      68
      Feels Like 68
      Cloudy
      N
      12
      Gusts 22 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
        Thu 09/17
        Low 65°f
        15% Precip. / 0 in
        Cloudy skies. Low near 65F. Winds NE at 10 to 15 mph.
        Tomorrow
        Fri 09/18
        High 71°f
        21% Precip. / 0 in
        Some sun in the morning with increasing clouds during the afternoon. High 71F. Winds ENE at 10 to 15 mph.
        Tomorrow night
        Fri 09/18
        Low 63°f
        93% Precip. / 0.96 in
        Mostly cloudy in the evening, then thunderstorms developing after midnight. Severe thunderstorms expected. Low 63F. Winds ESE at 10 to 15 mph. Chance of rain 90%. Rainfall near an inch.
        Hourly Forecast
        Now
        68°
        12AM
        68°
        1AM
        68°
        2AM
        68°
        3AM
        68°
        4AM
        67°
        5AM
        67°
        6AM
        66°
        6:35AM
        Sunrise
        7AM
        66°
        8AM
        67°
        9AM
        68°
        10AM
        69°
        11AM
        70°
        12PM
        71°
        1PM
        71°
        2PM
        71°
        3PM
        71°
        4PM
        71°
        5PM
        70°
        6PM
        70°
        6:55PM
        Sunset
        7PM
        69°
        8PM
        68°
        9PM
        69°
        10PM
        68°
        11PM
        68°
        Additional Conditions
        1. Pressure 30.21 in
        2. Visibility 10 miles
        3. Clouds Cloudy
        4. Dew Point65°F
        5. Humidity 90%
        6. Rainfall 1.46 in
        7. Snow Depth 0 in
        KMDW Station History
        Almanac for September 18, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 76°F 90°F 2024
        4. Low 65°F 58°F 45°F 1984
        5. Rain/Snow Depth
        6. Precipitation 0 in - in -
        7. Snow 0 in - in -
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 75°F 91°F
        4. Low 65°F 58°F 44°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:34 AM 6:55 PM
        3. Civil Twilight 6:07 AM 7:23 PM
        4. Nautical Twilight 5:34 AM 7:56PM
        5. Astronomical Twilight 5:00 AM 8:29 PM
        1. Length of Visible Light 13h 16m
        2. Length of Day 12h 20m
        3. Tomorrow will be 2 minutes 47 seconds shorter
        1. Moon 2:34 PM 11:03 PM
        2. First Quarter49% 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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        Weather Alerts
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