Allen Harbor Weather Forecast

    • 63
    • 80

    Mostly Cloudy

    • 64
    • 76

    Mostly Cloudy

    • 63
    • 77

    Mostly Sunny

    • 65
    • 77

    Mostly Sunny

    • 68
    • 79

    Mostly Sunny

    • 68
    • 81

    Partly Sunny

Today 5 Aug Barnstable

Mostly sunny. Near steady temperature in the mid 70s. Northeast Winds 5 to 10 Mph.

Tonight 5 Aug Barnstable

Mostly cloudy. Patchy fog after midnight. Visibility one quarter mile or less at Times after midnight. Lows in the lower 60s. Northeast Winds 5 to 10 Mph.

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Allen Harbor Temperature Statistics

August Temperature

Chatham, Chatham Municipal Airport (5 miles)

  • Lowest 3 August, 2025

    55 °F

  • Average August

    65.5 °F

  • Highest 3 August, 2025

    77 °F

Climate (2020–Present)

Chatham, Chatham Municipal Airport (5 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    54.1 °F

  • Average High 2020–2025

    60.2 °F
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