Barnstable Harbor - Great Thatch Island Weather Forecast

    • 29
    • 37

    Increasing Clouds

    • 34
    • 42

    Partly Sunny

    • 35
    • 47

    Chance Rain

    • 25
    • 44

    Rain Likely

    • 25
    • 36

    Chance Snow

    • 29
    • 37

    Mostly Cloudy

Today 12 Jan Barnstable

Sunny in the Morning, then becoming partly sunny. Blustery with Highs in the upper 30s. West Winds 15 to 25 Mph with Gusts up to 40 Mph, Diminishing to 10 to 15 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 12 Jan Barnstable

Partly cloudy in the Evening, then clearing. Near steady temperature in the lower 30s. West Winds 10 to 15 Mph.

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Barnstable Harbor - Great Thatch Island Temperature Statistics

January Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.7 miles)

  • Lowest 2 January, 2026

    14 °F

  • Average January

    29.5 °F

  • Highest 9 January, 2026

    51.1 °F

Climate (2021–Present)

Hyannis, Barnstable Municipal-Boardman Airport (3.7 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    59.6 °F
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