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      River Flood Warning
      until 3:00 AM CDT
      +7 more alerts
      Elev 33 ft, 42.079 °N 88.001 °W

      Rolling Meadows, IL

      Arlington Heights Station-40°
      Updated: 7:37 AM CDT on September 20, 2026 (GMT -5)
      7 minutes ago
      69°
      62°
      -40
      Feels Like -40
      Showers in Vicinity
      N
      10
      Gusts 19 mph
      Lower temperature is expected today
      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
        Today
        Sun 09/20
        High 66°f
         93% Precip. / 0.19 in
        Thunderstorms this morning, then variable clouds during the afternoon with still a chance of showers. High 66F. Winds NE at 10 to 20 mph. Chance of rain 90%.
        Tonight
        Sun 09/20
        Low 58°f
         46% Precip. / 0.02 in
        Showers early, then cloudy overnight. Low 58F. Winds ENE at 10 to 15 mph. Chance of rain 50%.
        Tomorrow
        Mon 09/21
        High 62°f55°f
         15% Precip. / 0 in
        Mostly cloudy. Slight chance of a rain shower. High 62F. Winds ENE at 10 to 20 mph.
        Hourly Forecast
        Now
        64°
        8AM
        91%
        64°
        9AM
        87%
        65°
        10AM
        86%
        65°
        11AM
        67%
        66°
        12PM
        62%
        65°
        1PM
        34%
        65°
        2PM
        39%
        65°
        3PM
        55%
        64°
        4PM
        31%
        64°
        5PM
        33%
        64°
        6PM
        39%
        64°
        6:52PM
        Sunset
        7PM
        47%
        64°
        8PM
        46%
        64°
        9PM
        39%
        63°
        10PM
        63°
        11PM
        63°
        12AM
        63°
        1AM
        63°
        2AM
        62°
        3AM
        61°
        4AM
        61°
        5AM
        60°
        6AM
        60°
        6:38AM
        Sunrise
        7AM
        59°
        Precipitation
        91%
        Thunderstorms likely to continue
        Pollen
        None
        Air Quality
        54
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.93 in
        2. Visibility 8 miles
        3. Clouds Cloudy
        4. Dew Point64°F
        5. Humidity 100%
        6. Rainfall 1.36 in
        7. Snow Depth 0 in
         KPWK Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 69°F 74°F 93°F 2018
        4. Low 62°F 55°F 36°F 1991
        5. Rain/Snow Depth
        6. Precipitation 0.21 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 64°F 74°F 93°F
        4. Low 62°F 55°F 34°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 7:53PM
        5. Astronomical Twilight 5:03 AM 8:26 PM
        1. Length of Visible Light 13h 11m
        2. Length of Day 12h 15m
        3. Tomorrow will be 2 minutes 49 seconds shorter
        1. Moon 4:02 PM 12:00 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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