Lieutenant Island Weather Forecast

    • 32
    • 37

    Becoming Sunny

    • 33
    • 42

    Mostly Sunny

    • 22
    • 38

    Chance Snow

    • 23
    • 28

    Mostly Cloudy

    • 31
    • 37

    Mostly Cloudy

    • 35
    • 42

    Chance Rain

Today 27 Feb Barnstable

Sunny. Highs in the upper 30s. Northwest Winds 5 to 10 Mph, becoming southwest in the afternoon.

Tonight 27 Feb Barnstable

Mostly clear. Lows in the lower 20s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

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

    47.4 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    59.9 °F
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