Dennis Port Weather Forecast

    • 59
    • 78

    Mostly Sunny

    • 64
    • 77

    Mostly Sunny

    • 60
    • 75

    Partly Sunny

    • 66
    • 78

    Mostly Cloudy

    • 66
    • 77

    Chance Rain Showers

    • 66
    • 78

    Slight Chance Rain Showers

Today 24 Jul Barnstable

Sunny. Highs in the upper 70s. Northwest Winds around 5 Mph, becoming southeast this afternoon.

Tonight 24 Jul Barnstable

Mostly clear. Lows in the upper 50s. Southeast Winds 5 to 10 Mph, becoming northeast after midnight.

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  • Temperature Forecast NOAA

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Dennis Port Temperature Statistics

July Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 20 July, 2026

    57.9 °F

  • Average July

    71.8 °F

  • Highest 3 July, 2026

    91 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    59.8 °F
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