Dennis Port Weather Forecast

    • 63
    • 80

    Mostly Sunny

    • 72
    • 83

    Rain Showers

    • 67
    • 85

    Partly Sunny

    • 69
    • 81

    Slight Chance Rain Showers

    • 71
    • 83

    Rain Showers Likely

    • 69
    • 83

    Chance Rain Showers

Today 17 Jul Barnstable

Sunny. Highs in the upper 70s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 17 Jul Barnstable

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dennis Port Temperature Statistics

July Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 13 July, 2026

    59 °F

  • Average July

    72.3 °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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