Lieutenant Island Weather Forecast

    • 54
    • 61

    Rain Showers

    • 53
    • 62

    Slight Chance Rain Showers

    • 56
    • 63

    Chance Rain Showers

    • 49
    • 65

    Partly Sunny

    • 49
    • 58

    Partly Sunny

    • 51
    • 62

    Rain Showers Likely

Today 11 Oct Barnstable

Cloudy with a 20 percent chance of Showers. Near steady temperature around 60. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 11 Oct Barnstable

Showers. Patchy fog. Not as cool. Near steady temperature in the upper 50s. Southeast Winds 5 to 10 Mph, becoming east 10 to 15 Mph after midnight. Gusts up to 25 Mph. Chance of rain near 100 percent.

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Lieutenant Island Temperature Statistics

October Temperature

Chatham, Chatham Municipal Airport (14.3 miles)

  • Lowest 7 October, 2026

    41 °F

  • Average October

    59.6 °F

  • Highest 2 October, 2026

    71.1 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    59.7 °F
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