Dennis Port Weather Forecast

    • 38
    • 55

    Sunny

    • 42
    • 59

    Sunny

    • 43
    • 61

    Mostly Sunny

    • 39
    • 53

    Mostly Sunny

    • 42
    • 52

    Partly Sunny

    • 49
    • 58

    Mostly Sunny

Today 24 Oct Barnstable

Sunny. Highs in the mid 50s. North Winds around 5 Mph.

Tonight 24 Oct Barnstable

Clear. Patchy frost after midnight. Lows in the mid 30s. Light and variable Winds.

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Dennis Port Temperature Statistics

October Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 19 October, 2026

    37.9 °F

  • Average October

    56.7 °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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