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      Elev 20 ft, 43.073 °N 70.718 °W

      New Castle, NH

      Portsmouth Yacht Club Station55°
      Updated: 7:48 PM EDT on September 19, 2026 (GMT -4)
      6 minutes ago
      63°
      47°
      55
      Feels Like 55
      Fair
      N
      2
      Similar 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
        Sat 09/19
        Low 46°f
         5% Precip. / 0 in
        A few passing clouds, otherwise generally clear. Low 46F. Winds light and variable.
        Tomorrow
        Sun 09/20
        High 62°f
         78% Precip. / 0.19 in
        Cloudy skies with periods of rain later in the day. Potential for heavy rainfall. High 62F. Winds SSE at 5 to 10 mph. Chance of rain 80%.
        Tomorrow night
        Sun 09/20
        Low 52°f
         85% Precip. / 0.24 in
        Rain early...then remaining cloudy with showers late. Low 52F. Winds NE at 5 to 10 mph. Chance of rain 90%. Rainfall near a quarter of an inch.
        Hourly Forecast
        Now
        54°
        8PM
        54°
        9PM
        53°
        10PM
        52°
        11PM
        53°
        12AM
        52°
        1AM
        51°
        2AM
        50°
        3AM
        49°
        4AM
        48°
        5AM
        47°
        6AM
        47°
        6:27AM
        Sunrise
        7AM
        50°
        8AM
        55°
        9AM
        58°
        10AM
        61°
        11AM
        61°
        12PM
        62°
        1PM
        33%
        62°
        2PM
        35%
        61°
        3PM
        72%
        61°
        4PM
        78%
        60°
        5PM
        74%
        59°
        6PM
        76%
        59°
        6:43PM
        Sunset
        7PM
        78%
        58°
        Precipitation
        78%
        Pollen
        None
        Air Quality
        24
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.2 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point47°F
        5. Humidity 78%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KPSM Station History
        Almanac for September 19, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 63°F 71°F 92°F 1983
        4. Low 47°F 51°F 33°F 1990
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.2 in -
        7. Snow 0 in 0 in -
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 62°F 70°F 93°F
        4. Low 47°F 50°F 30°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:26 AM 6:45 PM
        3. Civil Twilight 5:58 AM 7:13 PM
        4. Nautical Twilight 5:25 AM 7:47PM
        5. Astronomical Twilight 4:50 AM 8:21 PM
        1. Length of Visible Light 13h 15m
        2. Length of Day 12h 18m
        3. Tomorrow will be 2 minutes 54 seconds shorter
        1. Moon 3:16 PM 11:43 PM
        2. Waxing Gibbous58% 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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