Tropical Depression Nine in the Gulf of America; California October Heat Wave Continues

Tropical Depression Nine is forecast to track toward the central U.S. Gulf Coast while strengthening into a tropical storm by early Wednesday and a hurricane on Thursday. Stay tuned to forecast updates. Much higher than typical October temperatures will continue across much of California through midweek. Temperatures are forecast to gradually cool beginning Thursday in Coastal California. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

53°F

12°C

Humidity	48%
Wind Speed	W 6 mph
Barometer	30.02 in (1016.6 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Wind Chill	51°F (11°C)
Last update	6 Oct 8:56 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

South Yarmouth MA

Tonight
Low: 40 °F
Clear
Wednesday
High: 64 °F
Sunny
Wednesday Night
Low: 53 °F
Mostly Clear
Thursday
High: 68 °F
Partly Sunny
Thursday Night
Low: 53 °F
Mostly Clear
Friday
High: 65 °F
Sunny
Friday Night
Low: 50 °F
Mostly Clear
Saturday
High: 63 °F
Sunny
Saturday Night
Low: 53 °F
Mostly Clear

Detailed Forecast

Tonight

Clear, with a low around 40. West wind around 5 mph becoming calm after midnight.

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.

Additional Forecasts and Information

Zone Area Forecast for Barnstable County, MA

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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

Forecast Valid:

9pm EDT Oct 6, 2026-6pm EDT Oct 13, 2026

Forecast Discussion

Additional Resources

Radar & Satellite Image

Link to Local Radar Data

Link to Satellite Data

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