Lake Success Weather Forecast

    • 56
    • 66

    Mostly Cloudy

    • 55
    • 67

    Mostly Cloudy

    • 53
    • 66

    Chance Rain Showers

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    • 66

    Chance Rain Showers

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    • 66

    Chance Rain Showers

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    Slight Chance Rain Showers

Today 22 Sep Northern Nassau

Mostly cloudy. Highs in the mid 60s. Northeast Winds 15 to 20 Mph.

Tonight 22 Sep Northern Nassau

Mostly cloudy and breezy. Lows in the mid 50s. Northeast Winds 15 to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Success Temperature Statistics

September Temperature

New York, La Guardia Airport (8.1 miles)

  • Lowest 15 September, 2026

    60.7 °F

  • Average September

    74.6 °F

  • Highest 3 September, 2026

    88.6 °F

Climate (2021–2026)

New York, La Guardia Airport (8.1 miles)

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  • Average Low 2021–2026

    51.3 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    64.6 °F
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