Thatch Island Weather Forecast

    • 56
    • 78

    Chance Thunderstorms

    • 42
    • 65

    Slight Chance Rain Showers

    • 52
    • 65

    Chance Rain Showers

    • 51
    • 64

    Rain Showers Likely

    • 53
    • 63

    Chance Rain Showers

    • 55
    • 67

    Slight Chance Rain Showers

Today 20 May Barnstable

Sunny. A slight chance of Showers and Thunderstorms. Highs around 80. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 20 May Barnstable

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Lows in the mid 50s. West Winds 5 to 10 Mph with Gusts up to 25 Mph, becoming north after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thatch Island Temperature Statistics

May Temperature

Otis Air National Guard Base (5.6 miles)

  • Lowest 3 May, 2026

    39.2 °F

  • Average May

    55 °F

  • Highest 17 May, 2026

    78.8 °F

Climate (2021–Present)

Otis Air National Guard Base (5.6 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    59.1 °F
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