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      Small Craft Advisory
      until 8:00 PM EDT
      Elev 49 ft, 41.655 °N 70.288 °W

      Hyannis, MA

      Hyannis Station59°
      Updated: 6:30 AM EDT on September 20, 2026 (GMT -4)
      9 minutes ago
      64°
      54°
      59
      Feels Like 59
      Partly Cloudy
      N
      5
      Same 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 64°f
         83% Precip. / 0.15 in
        Rain showers early will evolve into a more steady rain for the afternoon. Potential for heavy rainfall. High 64F. Winds SE at 10 to 15 mph. Chance of rain 80%.
        Tonight
        Sun 09/20
        Low 60°f
         77% Precip. / 0.24 in
        Rain showers early will evolve into a more steady rain overnight. Low near 60F. Winds ESE at 10 to 15 mph. Chance of rain 80%. Rainfall near a quarter of an inch.
        Tomorrow
        Mon 09/21
        High 63°f56°f
         46% Precip. / 0.01 in
        Showers in the morning, then cloudy in the afternoon. High 63F. Winds NNE at 15 to 25 mph. Chance of rain 50%.
        Hourly Forecast
        Now
        57°
        7AM
        57°
        8AM
        59°
        9AM
        62°
        10AM
        63°
        11AM
        63°
        12PM
        37%
        64°
        1PM
        74%
        64°
        2PM
        83%
        63°
        3PM
        69%
        62°
        4PM
        57%
        62°
        5PM
        57%
        63°
        6PM
        56%
        62°
        6:41PM
        Sunset
        7PM
        52%
        61°
        8PM
        55%
        61°
        9PM
        58%
        61°
        10PM
        43%
        61°
        11PM
        63%
        62°
        12AM
        56%
        62°
        1AM
        48%
        62°
        2AM
        51%
        63°
        3AM
        77%
        63°
        4AM
        75%
        63°
        5AM
        70%
        63°
        6AM
        58%
        62°
        Precipitation
        83%
        Rain possible after 12 PM
        Pollen
        None
        Air Quality
        19
        Good
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 30.15 in
        2. Visibility 10 miles
        3. Clouds Partly Cloudy
        4. Dew Point49°F
        5. Humidity 75%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KHYA Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 64°F 70°F 86°F 1946
        4. Low 54°F 55°F 33°F 1964
        5. Rain/Snow Depth
        6. Precipitation 0.39 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 64°F 70°F 88°F
        4. Low 54°F 55°F 36°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:26 AM 6:41 PM
        3. Civil Twilight 5:58 AM 7:09 PM
        4. Nautical Twilight 5:26 AM 7:41PM
        5. Astronomical Twilight 4:52 AM 8:15 PM
        1. Length of Visible Light 13h 10m
        2. Length of Day 12h 15m
        3. Tomorrow will be 2 minutes 46 seconds shorter
        1. Moon 3:48 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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