Mashnee Island Weather Forecast

    • 68
    • 92

    Chance Thunderstorms

    • 63
    • 79

    Chance Rain Showers

    • 65
    • 68

    Rain Showers

    • 61
    • 70

    Rain Showers

    • 63
    • 76

    Partly Sunny

    • 67
    • 88

    Partly Sunny

Today 4 Jul Barnstable

Partly sunny. A chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the upper 80s. West Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon. Chance of rain 30 percent.

Tonight 4 Jul Barnstable

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Humid with Lows in the upper 60s. West Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 40 percent.

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Mashnee Island Temperature Statistics

July Temperature

Otis Air National Guard Base (7.5 miles)

  • Lowest 1 July, 2026

    68 °F

  • Average July

    76.4 °F

  • Highest 2 July, 2026

    86 °F

Climate (2021–2026)

Otis Air National Guard Base (7.5 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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