Dennis Port Weather Forecast

    • 67
    • 77

    Partly Sunny

    • 68
    • 80

    Mostly Cloudy

    • 68
    • 79

    Chance Rain Showers

    • 67
    • 81

    Chance Rain Showers

    • 67
    • 81

    Mostly Sunny

    • 68
    • 81

    Partly Sunny

Today 31 Jul Barnstable

Mostly sunny. Highs in the mid 70s. Northwest Winds around 5 Mph.

Tonight 31 Jul Barnstable

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Humid with Lows in the mid 60s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dennis Port Temperature Statistics

July Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 20 July, 2026

    57.9 °F

  • Average July

    71.7 °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

    47.3 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    59.8 °F
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