Dennis Port Weather Forecast

    • 36
    • 45

    Increasing Clouds

    • 40
    • 46

    Rain Likely

    • 40
    • 50

    Slight Chance Rain Showers

    • 40
    • 50

    Mostly Sunny

    • 41
    • 50

    Mostly Cloudy

    • 42
    • 51

    Partly Sunny

Today 21 Apr Barnstable

Sunny. Near steady temperature in the mid 40s. Northeast Winds 5 to 10 Mph, becoming east.

Tonight 21 Apr Barnstable

Partly cloudy. Near steady temperature in the upper 30s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dennis Port Temperature Statistics

April Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 9 April, 2026

    27 °F

  • Average April

    45.5 °F

  • Highest 15 April, 2026

    64.9 °F

Climate (2021–Present)

Chatham, Chatham Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    59.9 °F
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