Great South Bay Weather Forecast

    • 27
    • 36

    Breezy

    • 37
    • 44

    Rain Likely

    • 18
    • 39

    Rain/Snow Likely

    • 23
    • 26

    Chance Snow

    • 26
    • 31

    Chance Snow

    • 24
    • 35

    Mostly Cloudy

    • 23
    • 30

    Mostly Cloudy

Today 18 Jan Southwest Suffolk

Mostly sunny with scattered Flurries. Breezy with Highs in the mid 30s. Northwest Winds 15 to 25 Mph with Gusts up to 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great South Bay Temperature Statistics

January Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

  • Lowest 16 January, 2022

    9 °F

  • Average January

    32.4 °F

  • Highest 2 January, 2022

    57 °F

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average Low 2010–Present

    47.3 °F

  • Average 2010–Present

    54.6 °F

  • Average High 2010–Present

    61.9 °F
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