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      Elev 100 ft, 42.613 °N 71.575 °W

      Groton, MA

      Groton Station70°
      Updated: 4:09 PM EDT on September 30, 2026 (GMT -4)
      5 minutes ago
      71°
      55°
      70
      Feels Like 70
      Mostly Cloudy
      N
      5
      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
        Wed 09/30
        Low 55°f
         24% Precip. / 0 in
        Partly cloudy skies early will give way to cloudy skies late. Low around 55F. Winds light and variable.
        Tomorrow
        Thu 10/01
        High 77°f
         24% Precip. / 0 in
        Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High 77F. Winds SW at 5 to 10 mph.
        Tomorrow night
        Thu 10/01
        Low 64°f
         5% Precip. / 0 in
        Mostly cloudy skies early, then partly cloudy after midnight. Low 64F. Winds light and variable.
        Hourly Forecast
        Now
        70°
        5PM
        69°
        6PM
        66°
        6:29PM
        Sunset
        7PM
        63°
        8PM
        60°
        9PM
        58°
        10PM
        58°
        11PM
        57°
        12AM
        56°
        1AM
        57°
        2AM
        57°
        3AM
        57°
        4AM
        57°
        5AM
        57°
        6AM
        57°
        6:43AM
        Sunrise
        7AM
        56°
        8AM
        59°
        9AM
        64°
        10AM
        68°
        11AM
        72°
        12PM
        74°
        1PM
        74°
        2PM
        75°
        3PM
        76°
        4PM
        75°
        Precipitation
        24%
        Pollen
        None
        Air Quality
        21
        Good
        UV Index
        1
        Low
        Additional Conditions
        1. Pressure 30.04 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point59°F
        5. Humidity 69%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KFIT Station History
        Almanac for September 30, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 71°F 70°F 85°F 1952
        4. Low 55°F 45°F 24°F 1951
        5. Rain/Snow Depth
        6. Precipitation 0 in 2.9 in -
        7. Snow 0 in - in -
        Almanac for October 1, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 77°F 69°F 88°F
        4. Low 55°F 45°F 22°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:42 AM 6:29 PM
        3. Civil Twilight 6:14 AM 6:57 PM
        4. Nautical Twilight 5:41 AM 7:30PM
        5. Astronomical Twilight 5:08 AM 8:03 PM
        1. Length of Visible Light 12h 43m
        2. Length of Day 11h 46m
        3. Tomorrow will be 2 minutes 52 seconds shorter
        1. Moon 8:25 PM 11:30 AM
        2. Waning Gibbous77% 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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