Great River Weather Forecast

    • 51
    • 62

    Chance Rain Showers

    • 55
    • 67

    Chance Rain Showers

    • 52
    • 66

    Rain Showers Likely

    • 49
    • 63

    Chance Rain Showers

    • 49
    • 60

    Chance Rain Showers

    • 53
    • 63

    Chance Rain Showers

Today 1 May Southwest Suffolk

Mostly sunny. Highs in the lower 60s. East Winds 5 to 10 Mph, becoming southeast in the afternoon.

Tonight 1 May Southwest Suffolk

Mostly cloudy. A chance of Showers after midnight. Lows in the lower 50s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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Great River Temperature Statistics

May Temperature

Islip, Long Island Mac Arthur Airport (5 miles)

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  • Average May

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Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (5 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    62.9 °F
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