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      Elev 135 ft, 42.981 °N 71.072 °W

      Brentwood, NH

      Brentwood Station63°
      Updated: 1:51 PM EDT on September 19, 2026 (GMT -4)
      17 seconds ago
      65°
      43°
      63
      Feels Like 63
      Fair
      N
      3
      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
        Sat 09/19
        High 65°f
         1% Precip. / 0 in
        Sun and clouds mixed. High around 65F. Winds SE at 5 to 10 mph.
        Tonight
        Sat 09/19
        Low 45°f
         7% Precip. / 0 in
        Partly cloudy. Low around 45F. Winds light and variable.
        Tomorrow
        Sun 09/20
        High 59°f50°f
         95% Precip. / 0.36 in
        Showers early, becoming a steady rain later in the day. Potential for heavy rainfall. High 59F. Winds SE at 5 to 10 mph. Chance of rain 100%. Rainfall around a quarter of an inch.
        Hourly Forecast
        Now
        64°
        2PM
        64°
        3PM
        65°
        4PM
        65°
        5PM
        64°
        6PM
        61°
        6:46PM
        Sunset
        7PM
        58°
        8PM
        55°
        9PM
        52°
        10PM
        50°
        11PM
        49°
        12AM
        48°
        1AM
        47°
        2AM
        47°
        3AM
        47°
        4AM
        46°
        5AM
        46°
        6AM
        46°
        6:29AM
        Sunrise
        7AM
        46°
        8AM
        50°
        9AM
        54°
        10AM
        57°
        11AM
        43%
        58°
        12PM
        54%
        58°
        1PM
        69%
        58°
        Precipitation
        69%
        Pollen
        None
        Air Quality
        17
        Good
        UV Index
        5
        Moderate
        Additional Conditions
        1. Pressure 30.18 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point42°F
        5. Humidity 44%
        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 65°F 72°F 93°F 1983
        4. Low 43°F 49°F 32°F 1984
        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 59°F 72°F 93°F
        4. Low 43°F 48°F 25°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:28 AM 6:46 PM
        3. Civil Twilight 5:59 AM 7:15 PM
        4. Nautical Twilight 5:26 AM 7:48PM
        5. Astronomical Twilight 4:52 AM 8:22 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 3:17 PM 11:45 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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