Great South Bay Weather Forecast

    • 23
    • 32

    Cloudy

    • 7
    • 26

    Snow

    • 11
    • 19

    Blustery

    • 18
    • 24

    Partly Sunny

    • 25
    • 30

    Partly Sunny

    • 26
    • 35

    Chance Rain

Today 6 Feb Southwest Suffolk

Mostly cloudy. Highs in the lower 30s. North Winds 5 to 10 Mph.

Tonight 6 Feb Southwest Suffolk

Cloudy. A chance of snow in the Evening, then snow after midnight. Snow accumulation up to 1 inch. Lows in the lower 20s. West Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight. Chance of snow 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

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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