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      Elev 43 ft, 43.074 °N 70.761 °W

      Portsmouth, NH

      Little Harbor Station56°
      Updated: 10:34 PM EDT on September 20, 2026 (GMT -4)
      2 minutes ago
      62°
      41°
      56
      Feels Like 56
      Cloudy
      N
      4
      Higher 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
        Sun 09/20
        Low 53°f
         67% Precip. / 0.05 in
        Steady light rain this evening. Showers continuing overnight. Low 53F. Winds NNE at 5 to 10 mph. Chance of rain 70%.
        Tomorrow
        Mon 09/21
        High 66°f
         8% Precip. / 0 in
        Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High 66F. Winds NE at 5 to 10 mph.
        Tomorrow night
        Mon 09/21
        Low 50°f
         5% Precip. / 0 in
        Considerable cloudiness. Low around 50F. Winds NE at 5 to 10 mph.
        Hourly Forecast
        Now
        56°
        11PM
        50%
        56°
        12AM
        44%
        56°
        1AM
        54%
        55°
        2AM
        50%
        55°
        3AM
        55°
        4AM
        54°
        5AM
        55°
        6AM
        54°
        6:29AM
        Sunrise
        7AM
        54°
        8AM
        55°
        9AM
        57°
        10AM
        60°
        11AM
        63°
        12PM
        65°
        1PM
        65°
        2PM
        65°
        3PM
        65°
        4PM
        64°
        5PM
        64°
        6PM
        62°
        6:41PM
        Sunset
        7PM
        59°
        8PM
        58°
        9PM
        57°
        10PM
        56°
        Precipitation
        54%
        Rain likely around 11:00 PM
        Pollen
        None
        Air Quality
        30
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30 in
        2. Visibility 2.6 miles
        3. Clouds Cloudy
        4. Dew Point56°F
        5. Humidity 98%
        6. Rainfall 0.08 in
        7. Snow Depth 0 in
         KPSM Station History
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 62°F 70°F 91°F 1978
        4. Low 41°F 50°F 34°F 2020
        5. Rain/Snow Depth
        6. Precipitation 0.05 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 66°F 69°F 89°F
        4. Low 41°F 49°F 30°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:29 AM 6:42 PM
        3. Civil Twilight 6:00 AM 7:10 PM
        4. Nautical Twilight 5:27 AM 7:43PM
        5. Astronomical Twilight 4:53 AM 8:17 PM
        1. Length of Visible Light 13h 9m
        2. Length of Day 12h 12m
        3. Tomorrow will be 2 minutes 54 seconds shorter
        1. Moon 4:28 PM 12:46 AM
        2. Waxing Gibbous77% 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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