Great South Bay Weather Forecast

    • 32
    • 34

    Rain Likely

    • 27
    • 37

    Partly Sunny

    • 23
    • 33

    Partly Sunny

    • 27
    • 34

    Partly Sunny

    • 27
    • 37

    Partly Sunny

    • 34
    • 38

    Rain Likely

Today 10 Feb Southwest Suffolk

Partly sunny late this Morning, then becoming mostly cloudy. A slight chance of snow this afternoon. Highs in the mid 30s. Southwest Winds 5 to 10 Mph. Chance of snow 20 percent.

Tonight 10 Feb Southwest Suffolk

Rain likely with a chance of light sleet in the Evening, then a chance of rain after midnight. Lows in the upper 20s. South Winds 5 to 10 Mph, becoming west after midnight. Chance of precipitation 70 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 8 February, 2026

    3.9 °F

  • Average February

    20.4 °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

    47.3 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    63 °F
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