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      Elev 26 ft, 40.236 °N 74.704 °W

      Mercerville, NJ

      Mercerville Station72°
      Updated: 10:37 AM EDT on September 11, 2026 (GMT -4)
      9 minutes ago
      82°
      62°
      72
      Feels Like 72
      Partly Cloudy
      N
      6
      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
        Fri 09/11
        High 82°f
         9% Precip. / 0 in
        Mostly cloudy skies early, then partly cloudy this afternoon. High 82F. Winds NNW at 5 to 10 mph.
        Tonight
        Fri 09/11
        Low 59°f
         5% Precip. / 0 in
        Clear to partly cloudy. Low 59F. Winds light and variable.
        Tomorrow
        Sat 09/12
        High 82°f70°f
         5% Precip. / 0 in
        Intervals of clouds and sunshine. High 82F. Winds ESE at 5 to 10 mph.
        Hourly Forecast
        Now
        73°
        11AM
        73°
        12PM
        76°
        1PM
        78°
        2PM
        79°
        3PM
        81°
        4PM
        81°
        5PM
        81°
        6PM
        79°
        7PM
        76°
        7:14PM
        Sunset
        8PM
        73°
        9PM
        71°
        10PM
        68°
        11PM
        66°
        12AM
        64°
        1AM
        63°
        2AM
        62°
        3AM
        61°
        4AM
        60°
        5AM
        60°
        6AM
        60°
        6:36AM
        Sunrise
        7AM
        60°
        8AM
        63°
        9AM
        68°
        10AM
        73°
        Precipitation
        7%
        Pollen
        Ragweed Pollen
        Moderate
        Air Quality
        34
        Good
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 30.02 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point57°F
        5. Humidity 58%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KTTN Station History
        Almanac for September 11, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 80°F 98°F 1983
        4. Low 62°F 56°F 36°F 1917
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.4 in -
        7. Snow 0 in 0 in -
        Almanac for September 12, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 82°F 80°F 97°F
        4. Low 62°F 55°F 37°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:35 AM 7:14 PM
        3. Civil Twilight 6:08 AM 7:41 PM
        4. Nautical Twilight 5:36 AM 8:13PM
        5. Astronomical Twilight 5:02 AM 8:47 PM
        1. Length of Visible Light 13h 32m
        2. Length of Day 12h 38m
        3. Tomorrow will be 2 minutes 36 seconds shorter
        1. Moon 7:04 AM 7:21 PM
        2. Waxing Crescent0% of the Moon is Illuminated
        Sep 18
        Waxing Half First Qtr
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Precipitation
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