Nantucket Harbor - Pocomo Head Weather Forecast

    • 35
    • 35

    Increasing Clouds

    • 31
    • 43

    Partly Sunny

    • 14
    • 35

    Breezy

    • 16
    • 20

    Chance Snow

    • 24
    • 28

    Chance Snow

    • 21
    • 29

    Chance Snow

Today 21 Jan Nantucket

Partly sunny. Not as cool with Highs in the lower 40s. Southwest Winds 15 to 20 Mph.

Tonight 21 Jan Nantucket

Mostly clear. Near steady temperature around 20. West Winds 10 to 15 Mph.

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  • Temperature Real-Time

Nantucket Harbor - Pocomo Head Temperature Statistics

January Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 1 January, 2026

    19 °F

  • Average January

    35.2 °F

  • Highest 9 January, 2026

    48 °F

Climate (2021–Present)

Nantucket, Nantucket Memorial Airport (4.3 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    59.2 °F
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