Herring River - Dennis Port Weather Forecast

    • 59
    • 69

    Partly Sunny

    • 59
    • 68

    Partly Sunny

    • 62
    • 68

    Mostly Cloudy

    • 63
    • 71

    Dense Fog

    • 56
    • 72

    Dense Fog

    • 55
    • 63

    Partly Sunny

Today 15 Sep Barnstable

Mostly sunny. Patchy fog this morning. Highs in the lower 70s. Northeast Winds 5 to 10 Mph.

Tonight 15 Sep Barnstable

Partly cloudy. Patchy fog after midnight. Lows in the upper 50s. Northeast Winds 5 to 10 Mph.

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Herring River - Dennis Port Temperature Statistics

September Temperature

Chatham, Chatham Municipal Airport (6.2 miles)

  • Lowest 12 September, 2025

    51.1 °F

  • Average September

    65 °F

  • Highest 6 September, 2025

    79 °F

Climate (2020–Present)

Chatham, Chatham Municipal Airport (6.2 miles)

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  • Average Low 2020–2025

    47.7 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    60.1 °F
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