Barnstable Harbor - Great Thatch Island Weather Forecast

    • 35
    • 51

    Slight Chance Rain Showers

    • 38
    • 45

    Partly Sunny

    • 41
    • 49

    Chance Rain Showers

    • 41
    • 53

    Partly Sunny

    • 41
    • 51

    Partly Sunny

    • 42
    • 51

    Chance Rain Showers

    • 43
    • 53

    Chance Rain Showers

Today 20 Apr Barnstable

Partly sunny with a 20 percent chance of rain. Near steady temperature around 50. West Winds 5 to 10 Mph.

Tonight 20 Apr Barnstable

Mostly cloudy with a 20 percent chance of rain Showers. Lows in the lower 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 - Great Thatch Island Temperature Statistics

April Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.7 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 (3.7 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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