Lieutenant Island Weather Forecast

    • 33
    • 41

    Partly Sunny

    • 20
    • 38

    Chance Snow

    • 22
    • 26

    Mostly Cloudy

    • 35
    • 41

    Chance Rain/Snow

    • 36
    • 42

    Slight Chance Rain

    • 35
    • 41

    Chance Rain

Today 28 Feb Barnstable

Sunny. Highs in the mid 40s. South Winds 5 to 10 Mph.

Tonight 28 Feb Barnstable

Mostly clear. Near steady temperature in the mid 20s. South Winds 5 to 10 Mph.

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Lieutenant Island Temperature Statistics

February Temperature

Chatham, Chatham Municipal Airport (14.3 miles)

  • Lowest 8 February, 2026

    14 °F

  • Average February

    29.2 °F

  • Highest 11 February, 2026

    39.9 °F

Climate (2021–Present)

Chatham, Chatham Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    59.9 °F
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