Long Island South Weather Forecast

    • 74
    • 80

    Chance Rain Showers

    • 68
    • 82

    Chance Rain Showers

    • 65
    • 75

    Mostly Sunny

    • 69
    • 76

    Chance Rain Showers

    • 69
    • 78

    Slight Chance Thunderstorms

    • 68
    • 79

    Partly Sunny

Today 9 Sep Southern Westchester

Mostly cloudy. Near steady temperature in the lower 80s. South Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 9 Sep Southern Westchester

Mostly cloudy. A slight chance of Showers after midnight. Lows in the lower 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Long Island South Temperature Statistics

September Temperature

White Plains - Westchester County Airport (10.6 miles)

  • Lowest 7 September, 2026

    53.1 °F

  • Average September

    69.4 °F

  • Highest 3 September, 2026

    82.9 °F

Climate (2021–2026)

White Plains - Westchester County Airport (10.6 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    62.3 °F
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