Herring River - Dennis Port Weather Forecast

    • 66
    • 71

    Chance Rain Showers

    • 67
    • 74

    Rain Showers Likely

    • 70
    • 76

    Rain Showers Likely

    • 66
    • 78

    Mostly Sunny

    • 66
    • 77

    Mostly Sunny

    • 69
    • 78

    Partly Sunny

    • 69
    • 78

    Chance Rain Showers

Today 21 Aug Barnstable

Showers likely. Patchy fog. Cooler. Near steady temperature around 70. Northeast Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 21 Aug Barnstable

Cloudy with a 50 percent chance of Showers. Near steady temperature in the upper 60s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Herring River - Dennis Port Temperature Statistics

August Temperature

Chatham, Chatham Municipal Airport (6.2 miles)

  • Lowest 16 August, 2026

    59 °F

  • Average August

    73.6 °F

  • Highest 11 August, 2026

    84.9 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (6.2 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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