Dennis Port Weather Forecast

    • 36
    • 54

    Rain

    • 24
    • 43

    Partly Sunny

    • 27
    • 36

    Mostly Cloudy

    • 32
    • 39

    Partly Sunny

    • 31
    • 44

    Chance Rain

    • 30
    • 42

    Chance Rain/Snow

Today 16 Mar Barnstable

Rain with a chance of Thunderstorms, then rain likely with a slight chance of Thunderstorms. Patchy fog. Some Thunderstorms may produce heavy rainfall. Visibility one quarter mile or less at Times. Breezy and not as cool with Highs in the mid 50s. South Winds 15 to 25 Mph with Gusts up to 40 Mph. Chance of rain 90 percent.

Tonight 16 Mar Barnstable

Rain with a slight chance of Thunderstorms. Patchy fog. Some Thunderstorms may produce heavy rainfall. Visibility one quarter mile or less at Times. Windy with Lows in the upper 30s. South Winds 20 to 30 Mph. Gusts up to 55 Mph, increasing to 65 Mph after midnight. Chance of rain 90 percent.

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Dennis Port Temperature Statistics

March Temperature

Chatham, Chatham Municipal Airport (6.8 miles)

  • Lowest 3 March, 2026

    15.1 °F

  • Average March

    38.1 °F

  • Highest 9 March, 2026

    59 °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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