Hyannis Port Weather Forecast

    • 35
    • 46

    Chance Rain

    • 33
    • 47

    Rain Likely

    • 29
    • 39

    Chance Rain

    • 32
    • 39

    Partly Sunny

    • 32
    • 45

    Chance Rain

    • 35
    • 44

    Mostly Cloudy

Today 21 Mar Barnstable

Mostly cloudy this Morning, then becoming mostly sunny. Patchy fog this morning. Highs in the mid 40s. West Winds 5 to 10 Mph, becoming north 10 to 15 Mph this afternoon. Gusts up to 30 Mph.

Tonight 21 Mar Barnstable

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 30s. North Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hyannis Port Temperature Statistics

March Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

  • Lowest 2 March, 2026

    12.9 °F

  • Average March

    38.5 °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

    52.5 °F

  • Average High 2021–2026

    59.5 °F
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