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      Elev 928 ft, 40.923 °N 74.655 °W

      Hopatcong, NJ

      Updated: 10:24 PM EDT on September 3, 2026 (GMT -4)
      2 minutes ago
      85°
      64°
      75
      Feels Like 77
      Showers in Vicinity
      N
      2
      Lower 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 09/03
        Low 66°f
        96% Precip. / 0.08 in
        Thunderstorms this evening followed by occasional showers overnight. Low 66F. Winds light and variable. Chance of rain 100%.
        Tomorrow
        Fri 09/04
        High 81°f
        9% Precip. / 0 in
        Intervals of clouds and sunshine. High 81F. Winds NW at 5 to 10 mph.
        Tomorrow night
        Fri 09/04
        Low 58°f
        6% Precip. / 0 in
        Partly cloudy skies. Low 58F. Winds light and variable.
        Hourly Forecast
        Now
        73°
        11PM
        96%
        72°
        12AM
        71°
        1AM
        48%
        71°
        2AM
        69°
        3AM
        68°
        4AM
        68°
        5AM
        68°
        6AM
        67°
        6:28AM
        Sunrise
        7AM
        67°
        8AM
        69°
        9AM
        71°
        10AM
        73°
        11AM
        75°
        12PM
        77°
        1PM
        78°
        2PM
        79°
        3PM
        80°
        4PM
        80°
        5PM
        78°
        6PM
        76°
        7PM
        74°
        7:26PM
        Sunset
        8PM
        71°
        9PM
        69°
        10PM
        67°
        Additional Conditions
        1. Pressure 29.91 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point69°F
        5. Humidity 87%
        6. Rainfall 0.44 in
        7. Snow Depth 0 in
        K12N Station History
        Almanac for September 4, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 85°F 79°F 98°F 1953
        4. Low 64°F 57°F 38°F 1987
        5. Rain/Snow Depth
        6. Precipitation 0.08 in - in -
        7. Snow 0 in - in -
        Almanac for September 5, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 81°F 79°F 93°F
        4. Low 64°F 56°F 39°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:28 AM 7:26 PM
        3. Civil Twilight 6:00 AM 7:54 PM
        4. Nautical Twilight 5:27 AM 8:27PM
        5. Astronomical Twilight 4:52 AM 9:01 PM
        1. Length of Visible Light 13h 53m
        2. Length of Day 12h 57m
        3. Tomorrow will be 2 minutes 38 seconds shorter
        1. Moon 11:43 PM 2:58 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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        Weather Alerts
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