Lieutenant Island Weather Forecast

    • 64
    • 77

    Mostly Sunny

    • 63
    • 78

    Rain Showers

    • 61
    • 76

    Partly Sunny

    • 61
    • 73

    Mostly Sunny

    • 62
    • 71

    Partly Sunny

    • 66
    • 75

    Chance Rain Showers

    • 64
    • 77

    Slight Chance Rain Showers

Today 13 Jun Barnstable

Sunny. Near steady temperature in the lower 80s. Northwest Winds around 5 Mph.

Tonight 13 Jun Barnstable

Mostly clear. Lows in the upper 60s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lieutenant Island Temperature Statistics

June Temperature

Chatham, Chatham Municipal Airport (14.3 miles)

  • Lowest 2 June, 2026

    42.1 °F

  • Average June

    62.3 °F

  • Highest 5 June, 2026

    80.1 °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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