Thatch Island Weather Forecast

    • 61
    • 70

    Rain Showers Likely

    • 62
    • 73

    Rain Showers Likely

    • 56
    • 75

    Mostly Sunny

    • 53
    • 65

    Mostly Sunny

    • 56
    • 66

    Partly Sunny

    • 60
    • 70

    Partly Sunny

Today 17 Sep Barnstable

Partly sunny. A slight chance of Showers in the afternoon. Highs in the lower 70s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 17 Sep Barnstable

Showers likely. Lows in the lower 60s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

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Thatch Island Temperature Statistics

September Temperature

Otis Air National Guard Base (5.6 miles)

  • Lowest 13 September, 2025

    44.6 °F

  • Average September

    64 °F

  • Highest 6 September, 2025

    82.4 °F

Climate (2020–Present)

Otis Air National Guard Base (5.6 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    59.4 °F
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