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      Elev 1145 ft, 42.526 °N 72.186 °W

      Petersham, MA

      Stone Soup Station54°
      Updated: 9:25 AM EDT on September 20, 2026 (GMT -4)
      4 minutes ago
      57°
      47°
      54
      Feels Like 54
      Rain
      N
      4
      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
        Sun 09/20
        High 57°f
         95% Precip. / 0.21 in
        Rain. Potential for heavy rainfall. High 57F. Winds SE at 5 to 10 mph. Chance of rain 100%. Rainfall near a quarter of an inch.
        Tonight
        Sun 09/20
        Low 49°f
         74% Precip. / 0.06 in
        Cloudy with light rain this evening. Low 49F. Winds light and variable. Chance of rain 70%.
        Tomorrow
        Mon 09/21
        High 65°f45°f
         22% Precip. / 0 in
        Cloudy skies early, followed by partial clearing. High near 65F. Winds NNE at 5 to 10 mph.
        Hourly Forecast
        Now
        54°
        10AM
        80%
        55°
        11AM
        65%
        56°
        12PM
        35%
        55°
        1PM
        72%
        54°
        2PM
        81%
        54°
        3PM
        63%
        55°
        4PM
        68%
        55°
        5PM
        81%
        55°
        6PM
        84%
        56°
        6:49PM
        Sunset
        7PM
        75%
        56°
        8PM
        74%
        55°
        9PM
        67%
        55°
        10PM
        59%
        55°
        11PM
        37%
        54°
        12AM
        36%
        54°
        1AM
        54°
        2AM
        53°
        3AM
        52°
        4AM
        52°
        5AM
        51°
        6AM
        51°
        6:34AM
        Sunrise
        7AM
        50°
        8AM
        50°
        9AM
        53°
        Precipitation
        84%
        Rain likely to continue
        Pollen
        None
        Air Quality
        8
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.11 in
        2. Visibility 7 miles
        3. Clouds Cloudy
        4. Dew Point48°F
        5. Humidity 81%
        6. Rainfall 0.02 in
        7. Snow Depth 0 in
         KORE Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 57°F 74°F 88°F 1983
        4. Low 47°F 51°F 28°F 1979
        5. Rain/Snow Depth
        6. Precipitation 0.28 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 73°F 90°F
        4. Low 47°F 50°F 26°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:34 AM 6:49 PM
        3. Civil Twilight 6:05 AM 7:17 PM
        4. Nautical Twilight 5:32 AM 7:50PM
        5. Astronomical Twilight 4:58 AM 8:24 PM
        1. Length of Visible Light 13h 11m
        2. Length of Day 12h 15m
        3. Tomorrow will be 2 minutes 51 seconds shorter
        1. Moon 3:59 PM -
        2. Waxing Gibbous68% 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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