Middle Island Weather Forecast

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    Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

Today 20 Sep Northwest Suffolk

Cloudy. A chance of Showers in the Morning, then Showers likely in the afternoon. Highs in the lower 70s. Southeast Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 20 Sep Northwest Suffolk

Rain in the Evening, then Showers after midnight. Lows in the upper 50s. South Winds 5 to 10 Mph, becoming north 10 to 15 Mph after midnight. Gusts up to 25 Mph. Chance of rain 90 percent.

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Middle Island Temperature Statistics

September Temperature

Shirley, Brookhaven Airport (5.6 miles)

  • Lowest 15 September, 2026

    48.9 °F

  • Average September

    69 °F

  • Highest 10 September, 2026

    84.9 °F

Climate (2021–2026)

Shirley, Brookhaven Airport (5.6 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.5 °F

  • Average High 2021–2026

    62.5 °F
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