Long Island South Weather Forecast

    • 56
    • 85

    Rain Showers Likely

    • 51
    • 63

    Slight Chance Rain Showers

    • 50
    • 61

    Rain Showers

    • 51
    • 56

    Rain Showers

    • 53
    • 60

    Chance Rain Showers

    • 56
    • 68

    Slight Chance Rain Showers

Today 20 May Southern Westchester

Sunny in the Morning, then partly sunny with Showers likely with a chance of Thunderstorms in the afternoon. Highs in the lower 90s. West Winds 10 to 15 Mph. Chance of rain 60 percent.

Tonight 20 May Southern Westchester

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Cooler with Lows in the mid 50s. Northwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 60 percent.

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  • Temperature Real-Time

Long Island South Temperature Statistics

May Temperature

White Plains - Westchester County Airport (10.6 miles)

  • Lowest 12 May, 2026

    41 °F

  • Average May

    56.7 °F

  • Highest 17 May, 2026

    86 °F

Climate (2021–Present)

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

    62.2 °F
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