Sea Street Beach Weather Forecast

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    Chance Rain

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    Slight Chance Rain Showers

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    Mostly Cloudy

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    Chance Rain Showers

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    Rain Showers Likely

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    Chance Rain Showers

Today 21 Sep Barnstable

Mostly cloudy. Rain likely in the morning. Patchy fog in the morning. Near steady temperature around 60. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 21 Sep Barnstable

Mostly cloudy. Near steady temperature in the upper 50s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Sea Street Beach Temperature Statistics

September Temperature

Hyannis, Barnstable Municipal-Boardman Airport (6.8 miles)

  • Lowest 16 September, 2026

    46.9 °F

  • Average September

    66.9 °F

  • Highest 10 September, 2026

    82 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (6.8 miles)

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  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    59.3 °F
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