National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Overcast

64°F

18°C

Humidity 90%
Wind Speed N 17 G 31 mph
Barometer 29.94 in (1013.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 8 Jul 8:56 am EDT
Extended Forecast for

South Yarmouth MA

  • Today

    Today: Mostly sunny, with a high near 80. North wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. Calm wind becoming southwest around 6 mph after midnight.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 87. Southwest wind 8 to 14 mph.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 71. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 8am, then a chance of showers after 2pm. Mostly sunny and hot, with a high near 90. Southwest wind around 8 mph. Chance of precipitation is 30%.

    High: 90 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 70. Light and variable wind. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 85. North wind 7 to 9 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. North wind 5 to 7 mph.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 80. North wind 9 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 67. Calm wind becoming southwest around 6 mph after midnight.
Thursday
Mostly sunny, with a high near 87. Southwest wind 8 to 14 mph.
Thursday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 71. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers before 8am, then a chance of showers after 2pm. Mostly sunny and hot, with a high near 90. Southwest wind around 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 70. Light and variable wind. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 85. North wind 7 to 9 mph.
Saturday Night
Mostly clear, with a low around 69. Calm wind.
Sunday
Sunny, with a high near 82. North wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 70. Calm wind.
Monday
Mostly sunny, with a high near 84. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 71. South wind around 8 mph.
Tuesday
Mostly sunny, with a high near 86. Southwest wind 8 to 13 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Yarmouth MA
 41.67°N 70.2°W (Elev. 10 ft)
Last Update:
9:34 am EDT Jul 8, 2026
Forecast Valid:
9am EDT Jul 8, 2026-6pm EDT Jul 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation