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      Elev 604 ft, 41.860 °N 87.621 °W

      Chicago, IL

      Prairie District Station79°
      Updated: 10:51 PM CDT on September 15, 2026 (GMT -5)
      4 minutes ago
      86°
      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
         79% Precip. / 0.3 in
        Partly cloudy skies early then becoming cloudy with periods of rain late. Low 67F. Winds NNE at 5 to 10 mph. Chance of rain 80%. Rainfall around a quarter of an inch. Locally heavy rainfall possible.
        Tomorrow
        Wed 09/16
        High 71°f
         63% Precip. / 0.17 in
        Scattered thunderstorms in the morning, then variable clouds during the afternoon with more showers at times. High 71F. Winds NE at 5 to 10 mph. Chance of rain 60%.
        Tomorrow night
        Wed 09/16
        Low 67°f
         59% Precip. / 0.25 in
        Scattered thunderstorms developing overnight. Low 67F. Winds NNE at 5 to 10 mph. Chance of rain 60%. Locally heavy rainfall possible.
        Hourly Forecast
        Now
        73°
        11PM
        73°
        12AM
        72°
        1AM
        48%
        71°
        2AM
        40%
        71°
        3AM
        70°
        4AM
        70°
        5AM
        80%
        69°
        6AM
        52%
        69°
        6:32AM
        Sunrise
        7AM
        63%
        68°
        8AM
        51%
        68°
        9AM
        52%
        69°
        10AM
        52%
        69°
        11AM
        40%
        70°
        12PM
        36%
        71°
        1PM
        51%
        71°
        2PM
        51%
        71°
        3PM
        41%
        70°
        4PM
        70°
        5PM
        71°
        6PM
        70°
        6:58PM
        Sunset
        7PM
        70°
        8PM
        69°
        9PM
        68°
        10PM
        69°
        Precipitation
        80%
        Rain possible around 1:15 AM
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        59
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.14 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point71°F
        5. Humidity 95%
        6. Rainfall 0.13 in
        7. Snow Depth 0 in
         KMDW Station History
        Almanac for September 16, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 86°F 76°F 91°F 1994
        4. Low 68°F 57°F 45°F 1984
        5. Rain/Snow Depth
        6. Precipitation 0.3 in 0.11 in -
        7. Snow 0 in - in -
        Almanac for September 17, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 73°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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