Lieutenant Island Weather Forecast

    • 45
    • 52

    Patchy Fog

    • 46
    • 54

    Partly Sunny

    • 44
    • 53

    Chance Rain

    • 44
    • 51

    Slight Chance Rain

    • 49
    • 55

    Partly Sunny

    • 51
    • 58

    Mostly Cloudy

    • 50
    • 58

    Rain Showers Likely

Today 30 Apr Barnstable

Mostly cloudy with Showers likely. Patchy fog. Near steady temperature in the mid 50s. Southwest Winds around 5 Mph. Chance of rain 60 percent.

Tonight 30 Apr Barnstable

Mostly cloudy. Patchy fog. Lows in the mid 40s. West Winds around 5 Mph.

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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

    45.5 °F

  • Highest 15 April, 2026

    64.9 °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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