Great South Bay Weather Forecast

    • 42
    • 53

    Chance Rain

    • 43
    • 50

    Chance Rain

    • 42
    • 47

    Mostly Cloudy

    • 46
    • 48

    Slight Chance Rain Showers

    • 47
    • 53

    Partly Sunny

    • 47
    • 53

    Slight Chance Rain Showers

Today 2 Apr Southwest Suffolk

Mostly sunny. Highs in the mid 50s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 2 Apr Southwest Suffolk

Cloudy with a 50 percent chance of rain. Lows in the lower 40s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great South Bay Temperature Statistics

April Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average April

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Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (8.1 miles)

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  • Average Low 2010–Present

    45.9 °F

  • Average 2010–Present

    53.1 °F

  • Average High 2010–Present

    60.4 °F
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