Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Partly Cloudy

79°F

26°C

Humidity 88%
Wind Speed S 8 mph
Barometer 29.96 in (1014.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 16 Jul 6:56 pm EDT
Extended Forecast for

South Yarmouth MA

  • Tonight

    Tonight: Patchy dense fog.  Otherwise, increasing clouds, with a low around 72. Southwest wind around 8 mph.

    Low: 72 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm.  Patchy fog before 10am.  Otherwise, cloudy, with a high near 81. Southwest wind 9 to 15 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 72. Southwest wind 10 to 13 mph.

    Low: 72 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 81. Northwest wind 9 to 11 mph becoming north in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Northeast wind around 5 mph becoming light and variable.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. North wind 5 to 8 mph becoming south in the afternoon.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 3am.  Mostly cloudy, with a low around 68. South wind around 7 mph.  Chance of precipitation is 30%.

    Low: 68 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 79. South wind 9 to 11 mph.  Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm.  Partly cloudy, with a low around 66. Southwest wind around 7 mph becoming north after midnight.  Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Patchy dense fog. Otherwise, increasing clouds, with a low around 72. Southwest wind around 8 mph.
Thursday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 81. Southwest wind 9 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 72. Southwest wind 10 to 13 mph.
Friday
Sunny, with a high near 81. Northwest wind 9 to 11 mph becoming north in the afternoon.
Friday Night
Mostly clear, with a low around 66. Northeast wind around 5 mph becoming light and variable.
Saturday
Sunny, with a high near 79. North wind 5 to 8 mph becoming south in the afternoon.
Saturday Night
A chance of showers after 3am. Mostly cloudy, with a low around 68. South wind around 7 mph. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. South wind 9 to 11 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Partly cloudy, with a low around 66. Southwest wind around 7 mph becoming north after midnight. Chance of precipitation is 30%.
Monday
Sunny, with a high near 76. North wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 64. East wind around 6 mph becoming west after midnight.
Tuesday
Sunny, with a high near 78. North wind 6 to 10 mph becoming southeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 66. South wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 79. South wind 7 to 11 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
South Yarmouth MA
 41.65°N 70.2°W (Elev. 10 ft)
7:05 pm EDT Jul 16, 2025
7pm EDT Jul 16, 2025-6pm EDT Jul 23, 2025
 
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Additional Resources

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