Lieutenant Island Weather Forecast

    • 29
    • 45

    Mostly Cloudy

    • 30
    • 34

    Partly Sunny

    • 38
    • 43

    Partly Sunny

    • 40
    • 48

    Mostly Cloudy

    • 40
    • 46

    Chance Rain

    • 43
    • 50

    Chance Rain

Today 27 Mar Barnstable

Mostly cloudy. A slight chance of Showers. Highs in the upper 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 27 Mar Barnstable

Mostly cloudy in the Evening, then becoming partly cloudy. Cooler with Lows in the upper 20s. North Winds 5 to 10 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

    38.4 °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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