Lieutenant Island Weather Forecast

    • 70
    • 79

    Mostly Sunny

    • 72
    • 82

    Partly Sunny

    • 73
    • 83

    Slight Chance Thunderstorms

    • 70
    • 84

    Rain Showers Likely

    • 68
    • 79

    Chance Rain Showers

    • 68
    • 77

    Partly Sunny

Today 14 Jul Barnstable

Sunny. Near steady temperature in the lower 80s. South Winds 5 to 10 Mph.

Tonight 14 Jul Barnstable

Partly cloudy. Patchy fog. Visibility one quarter mile or less at Times after midnight. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lieutenant Island Temperature Statistics

July Temperature

Chatham, Chatham Municipal Airport (14.3 miles)

  • Lowest 2 July, 2024

    59.6 °F
  • Average July

    74.5 °F
  • Highest 8 July, 2024

    84.7 °F

Climate (2019–Present)

Chatham, Chatham Municipal Airport (14.3 miles)

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  • Average Low 2019–2024

    47.7 °F
  • Average 2019–2024

    53.8 °F
  • Average High 2019–2024

    59.8 °F
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