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      Elev 518 ft, 40.612 °N 74.476 °W

      Green Brook, NJ

      Greenbrook Mountain Station71°
      Updated: 6:54 AM EDT on September 4, 2026 (GMT -4)
      10 minutes ago
      84°
      67°
      71
      Feels Like 73
      Partly Cloudy
      N
      4
      Similar 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 84°f
         15% Precip. / 0 in
        Sunshine and clouds mixed. A stray shower or thunderstorm is possible. High 84F. Winds NW at 5 to 10 mph.
        Tonight
        Fri 09/04
        Low 62°f
         15% Precip. / 0 in
        A few clouds. A stray shower or thunderstorm is possible. Low 62F. Winds light and variable.
        Tomorrow
        Sat 09/05
        High 79°f59°f
         4% Precip. / 0 in
        Generally sunny despite a few afternoon clouds. High 79F. Winds N at 5 to 10 mph.
        Hourly Forecast
        Now
        70°
        7AM
        70°
        8AM
        72°
        9AM
        75°
        10AM
        78°
        11AM
        80°
        12PM
        81°
        1PM
        83°
        2PM
        83°
        3PM
        83°
        4PM
        84°
        5PM
        82°
        6PM
        80°
        7PM
        77°
        7:25PM
        Sunset
        8PM
        74°
        9PM
        73°
        10PM
        71°
        11PM
        70°
        12AM
        69°
        1AM
        68°
        2AM
        67°
        3AM
        65°
        4AM
        64°
        5AM
        64°
        6AM
        63°
        Precipitation
        15%
        Pollen
        Grass Pollen
        Low
        Air Quality
        38
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.86 in
        2. Visibility 8 miles
        3. Clouds Partly Cloudy
        4. Dew Point69°F
        5. Humidity 95%
        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 84°F 84°F 99°F 1929
        4. Low 67°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 79°F 83°F 93°F
        4. Low 67°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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