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      Flood Watch
      until 7:00 AM CDT
      Elev 775 ft, 41.802 °N 87.973 °W

      Westmont, IL

      Downtown Westmont Station69°
      Updated: 11:33 PM CDT on September 19, 2026 (GMT -5)
      6 minutes ago
      72°
      64°
      69
      Feels Like 69
      Fog
      N
      6
      Similar 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
        Sat 09/19
        Low 65°f
         100% Precip. / 1.29 in
        Thunderstorms likely. Storms may contain strong gusty winds. Low around 65F. Winds light and variable. Chance of rain 100%. 1 to 2 inches of rain expected.
        Tomorrow
        Sun 09/20
        High 68°f
         91% Precip. / 0.52 in
        Showers and thunderstorms likely. High 68F. Winds NE at 10 to 20 mph. Chance of rain 90%.
        Tomorrow night
        Sun 09/20
        Low 58°f
         24% Precip. / 0 in
        Cloudy. Low 58F. Winds ENE at 10 to 20 mph.
        Hourly Forecast
        Now
        69°
        12AM
        82%
        69°
        1AM
        81%
        69°
        2AM
        99%
        69°
        3AM
        100%
        68°
        4AM
        100%
        68°
        5AM
        100%
        68°
        6AM
        71%
        67°
        6:37AM
        Sunrise
        7AM
        82%
        67°
        8AM
        82%
        66°
        9AM
        60%
        67°
        10AM
        57%
        67°
        11AM
        92%
        67°
        12PM
        86%
        66°
        1PM
        81%
        66°
        2PM
        70%
        66°
        3PM
        59%
        65°
        4PM
        63%
        65°
        5PM
        54%
        65°
        6PM
        64°
        6:52PM
        Sunset
        7PM
        64°
        8PM
        64°
        9PM
        64°
        10PM
        64°
        11PM
        64°
        Precipitation
        100%
        Thunderstorms likely to continue
        Pollen
        None
        Air Quality
        68
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.88 in
        2. Visibility 1.5 miles
        3. Clouds Cloudy
        4. Dew Point69°F
        5. Humidity 100%
        6. Rainfall 1.91 in
        7. Snow Depth 0 in
         KMDW Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 72°F 77°F 92°F 1940
        4. Low 64°F 52°F 31°F 1956
        5. Rain/Snow Depth
        6. Precipitation 1.29 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 76°F 97°F
        4. Low 64°F 52°F 35°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:37 AM 6:52 PM
        3. Civil Twilight 6:09 AM 7:20 PM
        4. Nautical Twilight 5:36 AM 7:52PM
        5. Astronomical Twilight 5:03 AM 8:26 PM
        1. Length of Visible Light 13h 10m
        2. Length of Day 12h 15m
        3. Tomorrow will be 2 minutes 47 seconds shorter
        1. Moon 4:01 PM 12:01 AM
        2. Waxing Gibbous68% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
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