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      Elev 728 ft, 42.107 °N 87.988 °W

      Arlington Heights, IL

      Arlington Heights Station72°
      Updated: 11:19 PM CDT on September 9, 2026 (GMT -5)
      4 minutes ago
      80°
      68°
      72
      Feels Like 73
      Fair
      N
      5
      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
        Thu 09/10
        Low 63°f
         6% Precip. / 0 in
        Some clouds. Low 63F. Winds light and variable.
        Tomorrow
        Fri 09/11
        High 79°f
         5% Precip. / 0 in
        Mostly cloudy skies early, then partly cloudy in the afternoon. High 79F. Winds NNE at 5 to 10 mph.
        Tomorrow night
        Fri 09/11
        Low 58°f
         7% Precip. / 0 in
        Clear skies. Low 58F. Winds light and variable.
        Hourly Forecast
        Now
        70°
        12AM
        70°
        1AM
        69°
        2AM
        68°
        3AM
        67°
        4AM
        67°
        5AM
        65°
        6AM
        64°
        6:27AM
        Sunrise
        7AM
        64°
        8AM
        67°
        9AM
        70°
        10AM
        72°
        11AM
        74°
        12PM
        75°
        1PM
        76°
        2PM
        77°
        3PM
        77°
        4PM
        77°
        5PM
        76°
        6PM
        74°
        7PM
        72°
        7:09PM
        Sunset
        8PM
        70°
        9PM
        68°
        10PM
        66°
        11PM
        65°
        Precipitation
        5%
        Pollen
        None
        Air Quality
        25
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.97 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point69°F
        5. Humidity 95%
        6. Rainfall 0.13 in
        7. Snow Depth 0 in
         KPWK Station History
        Almanac for September 10, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 80°F 78°F 95°F 2013
        4. Low 68°F 59°F 44°F 1943
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.4 in -
        7. Snow 0 in 0 in -
        Almanac for September 11, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 78°F 77°F 95°F
        4. Low 68°F 59°F 41°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:26 AM 7:10 PM
        3. Civil Twilight 5:58 AM 7:38 PM
        4. Nautical Twilight 5:25 AM 8:11PM
        5. Astronomical Twilight 4:50 AM 8:46 PM
        1. Length of Visible Light 13h 39m
        2. Length of Day 12h 43m
        3. Tomorrow will be 2 minutes 46 seconds shorter
        1. Moon 5:48 AM 6:53 PM
        2. New0% of the Moon is Illuminated
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Precipitation
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