Dionis Weather Forecast

    • 63
    • 69

    Mostly Cloudy

    • 63
    • 69

    Chance Rain Showers

    • 62
    • 69

    Rain Showers Likely

    • 60
    • 71

    Partly Sunny

    • 60
    • 67

    Mostly Sunny

    • 60
    • 67

    Partly Sunny

Today 8 Sep Nantucket

Mostly cloudy. Highs around 70. North Winds 10 to 15 Mph.

Tonight 8 Sep Nantucket

Mostly cloudy. Lows in the lower 60s. Northeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dionis Temperature Statistics

September Temperature

Nantucket, Nantucket Memorial Airport (4.3 miles)

  • Lowest 4 September, 2025

    52 °F

  • Average September

    64.6 °F

  • Highest 5 September, 2025

    75 °F

Climate (2020–Present)

Nantucket, Nantucket Memorial Airport (4.3 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    59.4 °F
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