My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Elev 692 ft, 42.071 °N 87.938 °W

      Mount Prospect, IL

      Downtown Station66°
      Updated: 10:12 PM CDT on September 29, 2026 (GMT -5)
      4 minutes ago
      81°
      51°
      66
      Feels Like 66
      Partly Cloudy
      N
      5
      Lower temperature is expected tomorrow
      Wundermap
      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 09/29
        Low 62°f
         48% Precip. / 0.02 in
        Partly cloudy skies this evening will give way to occasional showers overnight. Low 62F. Winds SSW at 5 to 10 mph. Chance of rain 50%.
        Tomorrow
        Wed 09/30
        High 66°f
         96% Precip. / 0.72 in
        Rain likely. High 66F. Winds SSW at 10 to 15 mph. Chance of rain 100%. Rainfall around a half an inch.
        Tomorrow night
        Wed 09/30
        Low 63°f
         78% Precip. / 0.58 in
        Periods of rain. Low 63F. Winds SW at 5 to 10 mph. Chance of rain 80%. Rainfall around a half an inch.
        Hourly Forecast
        Now
        67°
        11PM
        66°
        12AM
        66°
        1AM
        66°
        2AM
        65°
        3AM
        65°
        4AM
        65°
        5AM
        41%
        65°
        6AM
        49%
        64°
        6:48AM
        Sunrise
        7AM
        82%
        63°
        8AM
        96%
        63°
        9AM
        94%
        63°
        10AM
        88%
        63°
        11AM
        93%
        63°
        12PM
        88%
        64°
        1PM
        83%
        64°
        2PM
        53%
        64°
        3PM
        36%
        65°
        4PM
        87%
        65°
        5PM
        71%
        65°
        6PM
        74%
        65°
        6:35PM
        Sunset
        7PM
        71%
        65°
        8PM
        66%
        65°
        9PM
        57%
        64°
        10PM
        37%
        65°
        Precipitation
        96%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        56
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.91 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point54°F
        5. Humidity 64%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KPWK Station History
        Almanac for September 29, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 70°F 99°F 1953
        4. Low 51°F 52°F 32°F 1984
        5. Rain/Snow Depth
        6. Precipitation 0.02 in 2.9 in -
        7. Snow 0 in 0 in -
        Almanac for September 30, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 70°F 92°F
        4. Low 62°F 51°F 29°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:46 AM 6:36 PM
        3. Civil Twilight 6:18 AM 7:04 PM
        4. Nautical Twilight 5:46 AM 7:36PM
        5. Astronomical Twilight 5:13 AM 8:09 PM
        1. Length of Visible Light 12h 45m
        2. Length of Day 11h 49m
        3. Tomorrow will be 2 minutes 48 seconds shorter
        1. Moon 7:53 PM 10:19 AM
        2. Waning Gibbous86% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 25
        Full Moon
        Nearby Weather Stations
        Station Location
        Temp
        Windchill
        Heat Index
        Dew Point
        Humidity
        Wind
        Precip.
        Elev.
        Updated
        Loading nearby stations…
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareers
        PWS NetworkWunderMap
        Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
        Level Access
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary