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      Elev 604 ft, 41.860 °N 87.621 °W

      Chicago, IL

      Prairie District Station79°
      Updated: 8:15 PM CDT on September 15, 2026 (GMT -5)
      3 minutes ago
      83°
      68°
      79
      Feels Like 82
      Partly Cloudy
      N
      4
      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
        Tue 09/15
        Low 67°f
         54% Precip. / 0.07 in
        Cloudy with occasional showers overnight. Low 67F. Winds NNE at 5 to 10 mph. Chance of rain 50%. Locally heavy rainfall possible.
        Tomorrow
        Wed 09/16
        High 71°f
         47% Precip. / 0.13 in
        Scattered thunderstorms in the morning followed by occasional showers in the afternoon. High 71F. Winds NE at 5 to 10 mph. Chance of rain 50%.
        Tomorrow night
        Wed 09/16
        Low 67°f
         65% Precip. / 0.36 in
        Cloudy skies early followed by thunderstorms late. Low 67F. Winds NE at 5 to 10 mph. Chance of rain 70%. Locally heavy rainfall possible.
        Hourly Forecast
        Now
        74°
        9PM
        74°
        10PM
        73°
        11PM
        72°
        12AM
        34%
        73°
        1AM
        33%
        71°
        2AM
        71°
        3AM
        34%
        70°
        4AM
        32%
        69°
        5AM
        54%
        69°
        6AM
        50%
        69°
        6:32AM
        Sunrise
        7AM
        43%
        68°
        8AM
        32%
        68°
        9AM
        36%
        69°
        10AM
        39%
        69°
        11AM
        38%
        70°
        12PM
        47%
        70°
        1PM
        47%
        70°
        2PM
        39%
        70°
        3PM
        38%
        70°
        4PM
        37%
        70°
        5PM
        70°
        6PM
        70°
        6:58PM
        Sunset
        7PM
        69°
        8PM
        69°
        Precipitation
        54%
        Thunderstorms possible after 12 AM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        58
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.09 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point72°F
        5. Humidity 94%
        6. Rainfall 0.22 in
        7. Snow Depth 0 in
         KMDW Station History
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 83°F 76°F 91°F 1994
        4. Low 68°F 57°F 45°F 1984
        5. Rain/Snow Depth
        6. Precipitation 0.07 in 0.11 in -
        7. Snow 0 in - in -
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 76°F 91°F
        4. Low 68°F 57°F 45°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:31 AM 6:58 PM
        3. Civil Twilight 6:03 AM 7:25 PM
        4. Nautical Twilight 5:30 AM 7:58PM
        5. Astronomical Twilight 4:57 AM 8:32 PM
        1. Length of Visible Light 13h 22m
        2. Length of Day 12h 26m
        3. Tomorrow will be 2 minutes 46 seconds shorter
        1. Moon 12:37 PM 9:28 PM
        2. Waxing Crescent30% 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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