October Heat Wave in California; Tropical Cyclone Possible in the Gulf

Much higher than typical October temperatures will continue across coastal southern California up through the Bay Area and Central Valley through midweek resulting in result in Major to Extreme HeatRisk. A tropical depression is likely to form over the Gulf of America during the middle part of this week with further strengthening possible as it moves northeastward later this week. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

62°F

17°C

Humidity 38%
Wind Speed W 10 mph
Barometer 29.96 in (1014.7 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 6 Oct 3:56 pm EDT
Extended Forecast for

South Yarmouth MA

  • Tonight

    Tonight: Clear, with a low around 40. West wind 5 to 7 mph becoming calm  after midnight. Winds could gust as high as 20 mph.

    Low: 40 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64. Light southwest wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 25 mph.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. Southwest wind around 14 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny through mid morning, then becoming partly sunny, with a high near 68. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 68 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. West wind around 7 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65. West wind 7 to 9 mph.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. Northwest wind around 6 mph.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63. Northwest wind 6 to 8 mph.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. Southwest wind 3 to 5 mph.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 40. West wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 64. Light southwest wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 53. Southwest wind around 14 mph.
Thursday
Sunny through mid morning, then becoming partly sunny, with a high near 68. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday Night
Mostly clear, with a low around 53. West wind around 7 mph.
Friday
Sunny, with a high near 65. West wind 7 to 9 mph.
Friday Night
Mostly clear, with a low around 50. Northwest wind around 6 mph.
Saturday
Sunny, with a high near 63. Northwest wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 53. Southwest wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 66. Southwest wind 8 to 13 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 57. Southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Columbus Day
A chance of showers. Partly sunny, with a high near 68. Southwest wind 9 to 13 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 55. North wind 7 to 9 mph.
Tuesday
Partly sunny, with a high near 65. North wind around 11 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
South Yarmouth MA
 41.67°N 70.2°W (Elev. 10 ft)
2:29 pm EDT Oct 6, 2026
4pm EDT Oct 6, 2026-6pm EDT Oct 13, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database