Cape Cod National Seashore Weather Forecast

    • 56
    • 74

    Mostly Sunny

    • 52
    • 79

    Mostly Sunny

    • 54
    • 70

    Partly Sunny

    • 57
    • 78

    Mostly Sunny

    • 53
    • 74

    Chance Rain Showers

    • 50
    • 68

    Slight Chance Rain Showers

Today 16 May Barnstable

Sunny. Not as cool with Highs in the upper 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 May Barnstable

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cape Cod National Seashore Temperature Statistics

May Temperature

Provincetown Municipal Airport (11.2 miles)

  • Lowest 9 May, 2026

    39 °F

  • Average May

    52.9 °F

  • Highest 10 May, 2026

    66.9 °F

Climate (2021–Present)

Provincetown Municipal Airport (11.2 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    58.4 °F
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