Lieutenant Island Weather Forecast

    • 47
    • 52

    Breezy

    • 48
    • 57

    Chance Rain Showers

    • 46
    • 59

    Chance Rain Showers

    • 48
    • 54

    Mostly Cloudy

    • 45
    • 55

    Chance Rain Showers

    • 45
    • 50

    Mostly Cloudy

Today 13 Apr Barnstable

Cloudy with a 20 percent chance of Showers. Windy with Highs in the upper 50s. Southwest Winds 20 to 30 Mph with Gusts up to 40 Mph.

Tonight 13 Apr Barnstable

Mostly cloudy with a slight chance of Showers in the Evening, then partly cloudy after midnight. Areas of fog. Breezy with Lows in the upper 40s. Southwest Winds 15 to 25 Mph with Gusts up to 35 Mph, Diminishing to 10 to 15 Mph after midnight. Chance of rain 20 percent.

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Lieutenant Island Temperature Statistics

April Temperature

Chatham, Chatham Municipal Airport (14.3 miles)

  • Lowest 9 April, 2026

    27 °F

  • Average April

    42.9 °F

  • Highest 11 April, 2026

    55.9 °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

    53.7 °F

  • Average High 2021–2026

    59.8 °F
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