Dennis Port Weather Forecast

    • 24
    • 48

    Rain

    • 23
    • 31

    Mostly Cloudy

    • 21
    • 36

    Chance Snow

    • 19
    • 30

    Chance Snow

    • 22
    • 30

    Slight Chance Snow

    • 25
    • 35

    Chance Snow

Today 29 Dec Barnstable

A chance of rain in the Morning, then rain in the afternoon. Not as cool with Highs around 50. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Tonight 29 Dec Barnstable

Partly cloudy and Blustery. Lows in the mid 20s. West Winds 15 to 25 Mph with Gusts up to 40 Mph.

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  • Temperature Forecast NOAA

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Dennis Port Temperature Statistics

December Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 15 December, 2025

    18 °F

  • Average December

    34.3 °F

  • Highest 19 December, 2025

    54 °F

Climate (2020–Present)

Chatham, Chatham Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    59.9 °F
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