Barnstable Harbor Weather Forecast

    • 37
    • 51

    Slight Chance Rain Showers

    • 38
    • 47

    Slight Chance Rain Showers

    • 41
    • 49

    Mostly Cloudy

    • 42
    • 54

    Partly Sunny

    • 41
    • 52

    Partly Sunny

    • 43
    • 52

    Slight Chance Rain Showers

Today 20 Apr Barnstable

Sunny in the Morning, then partly sunny with a slight chance of rain Showers in the afternoon. Highs around 50. West Winds 5 to 10 Mph, becoming southwest in the afternoon. Chance of rain 20 percent.

Tonight 20 Apr Barnstable

Mostly cloudy. Lows in the mid 30s. North Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Barnstable Harbor Temperature Statistics

April Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    46.5 °F

  • Highest 15 April, 2026

    72 °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

    59.4 °F
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