Great South Bay Weather Forecast

    • 8
    • 25

    Snow Likely

    • 11
    • 21

    Mostly Sunny

    • 21
    • 26

    Partly Sunny

    • 28
    • 33

    Slight Chance Snow

    • 27
    • 38

    Chance Snow

    • 23
    • 32

    Mostly Cloudy

Today 7 Feb Southwest Suffolk

Cloudy with a 50 percent chance of snow. Windy, cold with Highs in the mid 20s. Northwest Winds 20 to 30 Mph with Gusts up to 50 Mph. Wind chill Values as low as 6 below this afternoon.

Tonight 7 Feb Southwest Suffolk

Mostly cloudy in the Evening, then becoming partly cloudy. Very windy and Colder with Lows around 6 above. Northwest Winds 25 to 35 Mph, Diminishing to 15 to 25 Mph after midnight. Gusts up to 50 Mph. Wind chill Values as low as 13 below.

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Great South Bay Temperature Statistics

February Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

  • Lowest 1 February, 2026

    12.7 °F

  • Average February

    23 °F

  • Highest 2 February, 2026

    32.6 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63 °F
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