Mamaroneck Harbor Weather Forecast

    • 57
    • 71

    Chance Rain

    • 54
    • 65

    Chance Rain

    • 53
    • 64

    Mostly Cloudy

    • 53
    • 63

    Chance Rain Showers

    • 55
    • 63

    Chance Rain Showers

    • 57
    • 64

    Chance Rain Showers

Today 21 Sep Southern Westchester

Partly sunny. Highs in the lower 70s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 21 Sep Southern Westchester

Mostly cloudy. A slight chance of rain after midnight. Lows in the mid 50s. Northeast Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mamaroneck Harbor Temperature Statistics

September Temperature

White Plains - Westchester County Airport (8.1 miles)

  • Lowest 15 September, 2026

    51.1 °F

  • Average September

    69.1 °F

  • Highest 10 September, 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 °F

  • Average High 2021–2026

    62.3 °F
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