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      Elev 518 ft, 40.612 °N 74.476 °W

      Green Brook, NJ

      Greenbrook Mountain Station72°
      Updated: 7:55 AM EDT on September 4, 2026 (GMT -4)
      5 minutes ago
      86°
      69°
      72
      Feels Like 73
      Fog
      N
      4
      Same 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
        Fri 09/04
        High 86°f
         15% Precip. / 0 in
        Sunshine and clouds mixed. A stray shower or thunderstorm is possible. High 86F. Winds NW at 5 to 10 mph.
        Tonight
        Fri 09/04
        Low 64°f
         15% Precip. / 0 in
        Partly cloudy. A stray shower or thunderstorm is possible. Low 64F. Winds light and variable.
        Tomorrow
        Sat 09/05
        High 81°f61°f
         4% Precip. / 0 in
        Partly cloudy. High 81F. Winds N at 5 to 10 mph.
        Hourly Forecast
        Now
        72°
        8AM
        72°
        9AM
        75°
        10AM
        77°
        11AM
        79°
        12PM
        81°
        1PM
        83°
        2PM
        83°
        3PM
        85°
        4PM
        85°
        5PM
        84°
        6PM
        82°
        7PM
        80°
        7:25PM
        Sunset
        8PM
        77°
        9PM
        75°
        10PM
        74°
        11PM
        73°
        12AM
        71°
        1AM
        70°
        2AM
        69°
        3AM
        68°
        4AM
        67°
        5AM
        66°
        6AM
        65°
        6:28AM
        Sunrise
        7AM
        65°
        Precipitation
        15%
        Pollen
        Grass Pollen
        Low
        Air Quality
        34
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.87 in
        2. Visibility 1.5 miles
        3. Clouds Cloudy
        4. Dew Point69°F
        5. Humidity 92%
        6. Rainfall 0.07 in
        7. Snow Depth 0 in
         KSMQ Station History
        Almanac for September 4, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 86°F 84°F 99°F 1929
        4. Low 69°F 61°F 43°F 1908
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.6 in -
        7. Snow 0 in 0 in -
        Almanac for September 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 83°F 93°F
        4. Low 69°F 61°F 46°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:28 AM 7:25 PM
        3. Civil Twilight 6:00 AM 7:52 PM
        4. Nautical Twilight 5:26 AM 8:25PM
        5. Astronomical Twilight 4:52 AM 9:00 PM
        1. Length of Visible Light 13h 52m
        2. Length of Day 12h 57m
        3. Tomorrow will be 2 minutes 36 seconds shorter
        1. Moon 11:43 PM 2:56 PM
        2. Last Quarter40% of the Moon is Illuminated
        Sep 4
        Waning Half Last Qtr
        Sep 10
        New Moon
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Precipitation
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