Dennis Port Weather Forecast

    • 35
    • 52

    Rain Showers Likely

    • 44
    • 53

    Mostly Sunny

    • 47
    • 57

    Chance Rain Showers

    • 48
    • 58

    Partly Sunny

    • 47
    • 58

    Partly Sunny

    • 47
    • 58

    Partly Sunny

Today 17 Oct Barnstable

Mostly cloudy. Showers Likely, mainly in the morning. Much cooler and less humid. Near steady temperature around 50. North Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

Tonight 17 Oct Barnstable

Mostly clear. Patchy frost after midnight. Cooler with Lows in the mid 30s. North Winds 15 to 20 Mph with Gusts up to 35 Mph.

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Dennis Port Temperature Statistics

October Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 7 October, 2026

    41 °F

  • Average October

    58.9 °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

    47.3 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    59.6 °F
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