Dennis Port Weather Forecast

    • 34
    • 50

    Sunny

    • 45
    • 55

    Mostly Sunny

    • 49
    • 60

    Mostly Sunny

    • 50
    • 60

    Partly Sunny

    • 51
    • 61

    Partly Sunny

    • 53
    • 62

    Rain Showers Likely

Today 31 Oct Barnstable

Sunny. Much cooler with Highs in the lower 50s. North Winds 15 to 20 Mph. Gusts up to 30 Mph in the morning.

Tonight 31 Oct Barnstable

Clear. Lows in the lower 30s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dennis Port Temperature Statistics

October Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 28 October, 2026

    35.1 °F

  • Average October

    54.9 °F

  • Highest 14 October, 2026

    72 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    59.6 °F
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