Mamaroneck Harbor Weather Forecast

    • 74
    • 88

    Chance Thunderstorms

    • 75
    • 88

    Chance Thunderstorms

    • 70
    • 87

    Mostly Sunny

    • 74
    • 89

    Slight Chance Thunderstorms

    • 72
    • 88

    Chance Rain Showers

    • 70
    • 83

    Chance Rain Showers

Today 7 Aug Southern Westchester

Partly sunny. A chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall this afternoon. Highs around 90. West Winds around 5 Mph, becoming southwest around 5 Mph this afternoon. Chance of rain 40 percent. Heat index Values in the upper 90s.

Tonight 7 Aug Southern Westchester

Mostly cloudy. Showers and Thunderstorms Likely, mainly in the evening. Patchy fog after midnight. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Humid with Lows in the mid 70s. Southwest Winds around 5 Mph. Chance of rain 60 percent.

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Mamaroneck Harbor Temperature Statistics

August Temperature

White Plains - Westchester County Airport (8.1 miles)

  • Lowest 4 August, 2026

    61 °F

  • Average August

    74.7 °F

  • Highest 1 August, 2026

    84 °F

Climate (2021–2026)

White Plains - Westchester County Airport (8.1 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54.1 °F

  • Average High 2021–2026

    62.3 °F
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