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      High Wind Warning
      until 8:00 AM EDT
      +4 more alerts
      Elev 10 ft, 42.249 °N 70.802 °W

      Cohasset, MA

      Black Rock Station59°
      Updated: 11:51 PM EDT on September 26, 2026 (GMT -4)
      3 minutes ago
      62°
      55°
      59
      Feels Like 55
      Fog/Wind
      N
      26
      Gusts 43 mph
      Higher temperature is expected tomorrow
      Wundermap
      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 09/26
        Low 58°f
         100% Precip. / 0.77 in
        Windy with evening showers evolving to a steady, soaking rain overnight. Low 58F. Winds NE at 25 to 35 mph. Chance of rain 100%. Rainfall possibly over one inch. Coastal flooding possible at high tide.
        Tomorrow
        Sun 09/27
        High 63°f
         96% Precip. / 1.09 in
        Cloudy and windy with periods of rain. High 63F. Winds ENE at 20 to 30 mph. Chance of rain 100%. Rainfall may reach one inch. Coastal flooding possible at high tide.
        Tomorrow night
        Sun 09/27
        Low 57°f
         95% Precip. / 0.79 in
        Rain likely. Low 57F. Winds NE at 15 to 25 mph. Chance of rain 100%. Rainfall may reach one inch. Coastal flooding possible at high tide.
        Hourly Forecast
        Now
        59°
        12AM
        59°
        1AM
        53%
        60°
        2AM
        99%
        60°
        3AM
        100%
        60°
        4AM
        100%
        60°
        5AM
        100%
        60°
        6AM
        100%
        61°
        6:35AM
        Sunrise
        7AM
        92%
        61°
        8AM
        96%
        61°
        9AM
        90%
        62°
        10AM
        76%
        62°
        11AM
        76%
        63°
        12PM
        72%
        62°
        1PM
        56%
        62°
        2PM
        51%
        62°
        3PM
        79%
        62°
        4PM
        69%
        62°
        5PM
        89%
        62°
        6PM
        80%
        62°
        6:31PM
        Sunset
        7PM
        60%
        61°
        8PM
        52%
        61°
        9PM
        81%
        61°
        10PM
        73%
        60°
        11PM
        57%
        60°
        Precipitation
        100%
        Rain expected around 1:15 AM
        Pollen
        None
        Air Quality
        43
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.75 in
        2. Visibility 1.5 miles
        3. Clouds Cloudy
        4. Dew Point57°F
        5. Humidity 92%
        6. Rainfall 1.45 in
        7. Snow Depth 0 in
         KGHG Station History
        Almanac for September 27, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 62°F 70°F 88°F 2017
        4. Low 55°F 51°F 32°F 1966
        5. Rain/Snow Depth
        6. Precipitation 0.77 in 2.9 in -
        7. Snow 0 in 0 in -
        Almanac for September 28, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 63°F 69°F 90°F
        4. Low 55°F 51°F 32°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:35 AM 6:31 PM
        3. Civil Twilight 6:08 AM 6:59 PM
        4. Nautical Twilight 5:35 AM 7:32PM
        5. Astronomical Twilight 5:02 AM 8:05 PM
        1. Length of Visible Light 12h 51m
        2. Length of Day 11h 55m
        3. Tomorrow will be 2 minutes 49 seconds shorter
        1. Moon 6:43 PM 7:37 AM
        2. Waning Gibbous97% of the Moon is Illuminated
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Oct 26
        Full Moon
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