Hyannis Port Weather Forecast

    • 48
    • 53

    Rain Showers

    • 36
    • 52

    Rain Showers

    • 36
    • 42

    Chance Rain Showers

    • 44
    • 51

    Mostly Cloudy

    • 41
    • 53

    Chance Rain

    • 41
    • 54

    Chance Rain

Today 31 Mar Barnstable

Mostly cloudy with numerous Showers with isolated Thunderstorms this Morning, then partly sunny with isolated Showers this afternoon. Some Thunderstorms may produce heavy rainfall this morning. Highs in the mid 50s. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

Tonight 31 Mar Barnstable

Mostly cloudy. Isolated Showers in the Evening, then scattered Showers after midnight. Patchy fog. Near steady temperature in the upper 40s. Southwest Winds 5 to 10 Mph, increasing to 15 to 20 Mph after midnight. Gusts up to 30 Mph. Chance of rain 40 percent.

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Hyannis Port Temperature Statistics

March Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

  • Lowest 2 March, 2026

    12.9 °F

  • Average March

    38.7 °F

  • Highest 9 March, 2026

    63 °F

Climate (2021–Present)

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

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  • Average Low 2021–2026

    44.9 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.4 °F
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