Pleasant Bay - Sipson Island Weather Forecast

    • 45
    • 54

    Decreasing Clouds

    • 48
    • 52

    Increasing Clouds

    • 50
    • 56

    Slight Chance Rain Showers

    • 47
    • 57

    Rain Showers

    • 49
    • 61

    Chance Rain Showers

    • 52
    • 65

    Partly Sunny

    • 52
    • 71

    Partly Sunny

Today 11 May Barnstable

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the upper 50s. Northeast Winds around 5 Mph.

Tonight 11 May Barnstable

Mostly cloudy. Lows in the mid 40s. Southwest Winds around 5 Mph, becoming northwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Pleasant Bay - Sipson Island Temperature Statistics

May Temperature

Chatham, Chatham Municipal Airport (3.7 miles)

  • Lowest 8 May, 2026

    42.1 °F

  • Average May

    52.3 °F

  • Highest 6 May, 2026

    63 °F

Climate (2021–Present)

Chatham, Chatham Municipal Airport (3.7 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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