North Great River Weather Forecast

    • 63
    • 80

    Mostly Cloudy

    • 60
    • 77

    Slight Chance Thunderstorms

    • 60
    • 72

    Chance Rain Showers

    • 59
    • 74

    Chance Rain Showers

    • 60
    • 72

    Chance Rain Showers

    • 62
    • 74

    Chance Rain Showers

Today 5 Jun Southwest Suffolk

Mostly sunny. Highs in the upper 70s. Southwest Winds 10 to 15 Mph.

Tonight 5 Jun Southwest Suffolk

Mostly cloudy. Lows in the mid 60s. Southwest Winds 10 to 15 Mph.

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North Great River Temperature Statistics

June Temperature

Islip, Long Island Mac Arthur Airport (4.3 miles)

  • Lowest 2 June, 2025

    48.9 °F

  • Average June

    62.2 °F

  • Highest 3 June, 2025

    78.1 °F

Climate (2020–Present)

Islip, Long Island Mac Arthur Airport (4.3 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    63 °F
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