Thatch Island Weather Forecast

    • 60
    • 81

    Slight Chance Rain Showers

    • 53
    • 74

    Mostly Sunny

    • 62
    • 71

    Rain Showers

    • 66
    • 73

    Rain Showers

    • 62
    • 74

    Partly Sunny

    • 65
    • 71

    Partly Sunny

Today 10 Sep Barnstable

Mostly cloudy with a chance of Showers this Morning, then mostly sunny this afternoon. Highs in the lower 80s. Southwest Winds 15 to 20 Mph. Gusts up to 45 Mph, decreasing to 35 Mph this afternoon. Chance of rain 50 percent.

Tonight 10 Sep Barnstable

Mostly clear in the Evening, then becoming partly cloudy. Cooler with Lows around 60. West Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thatch Island Temperature Statistics

September Temperature

Otis Air National Guard Base (5.6 miles)

  • Lowest 6 September, 2026

    55.4 °F

  • Average September

    66.3 °F

  • Highest 4 September, 2026

    80.6 °F

Climate (2021–2026)

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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