Herring River - Dennis Port Weather Forecast

    • 26
    • 45

    Decreasing Clouds

    • 30
    • 34

    Chance Snow

    • 32
    • 40

    Rain

    • 30
    • 39

    Mostly Cloudy

    • 34
    • 41

    Chance Rain

    • 33
    • 41

    Chance Rain

Today 21 Dec Barnstable

Mostly sunny. Highs in the mid 40s. Temperature falling into the upper 30s in the afternoon. Southwest Winds 15 to 20 Mph, becoming west in the afternoon. Gusts up to 40 Mph.

Tonight 21 Dec Barnstable

Mostly cloudy. Near steady temperature around 40. Southwest Winds 15 to 20 Mph with Gusts up to 40 Mph.

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Herring River - Dennis Port Temperature Statistics

December Temperature

Chatham, Chatham Municipal Airport (6.2 miles)

  • Lowest 15 December, 2025

    18 °F

  • Average December

    34.1 °F

  • Highest 2 December, 2025

    50 °F

Climate (2020–Present)

Chatham, Chatham Municipal Airport (6.2 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    53.9 °F

  • Average High 2020–2025

    59.9 °F
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