Lieutenant Island Weather Forecast

    • 47
    • 52

    Rain Showers Likely

    • 44
    • 53

    Chance Rain Showers

    • 44
    • 48

    Cloudy

    • 38
    • 52

    Rain Showers Likely

    • 36
    • 45

    Partly Sunny

    • 41
    • 46

    Slight Chance Rain Showers

    • 43
    • 51

    Slight Chance Rain Showers

Today 16 Apr Barnstable

Mostly sunny and cooler. Near steady temperature in the upper 50s. Southwest Winds around 5 Mph.

Tonight 16 Apr Barnstable

Mostly cloudy. Patchy fog. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the upper 40s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lieutenant Island Temperature Statistics

April Temperature

Chatham, Chatham Municipal Airport (14.3 miles)

  • Lowest 9 April, 2026

    27 °F

  • Average April

    43.5 °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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