Lieutenant Island Weather Forecast

    • 36
    • 42

    Rain Likely

    • 34
    • 44

    Breezy

    • 37
    • 42

    Rain Likely

    • 39
    • 52

    Rain

    • 27
    • 45

    Slight Chance Rain

    • 31
    • 35

    Partly Sunny

Today 13 Mar Barnstable

Sunny this Morning, then becoming partly sunny. Highs in the lower 40s. West Winds 5 to 10 Mph with Gusts up to 30 Mph, becoming southwest with Gusts up to 20 Mph this afternoon.

Tonight 13 Mar Barnstable

Mostly cloudy with a 50 percent chance of rain. Lows in the mid 30s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lieutenant Island Temperature Statistics

March Temperature

Chatham, Chatham Municipal Airport (14.3 miles)

  • Lowest 3 March, 2026

    15.1 °F

  • Average March

    36.5 °F

  • Highest 9 March, 2026

    59 °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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