Mamaroneck Weather Forecast

    • 58
    • 62

    Rain

    • 61
    • 65

    Rain Showers

    • 61
    • 66

    Rain Showers Likely

    • 59
    • 71

    Mostly Cloudy

    • 62
    • 75

    Partly Sunny

    • 64
    • 75

    Partly Sunny

    • 61
    • 75

    Mostly Cloudy

Today 26 Sep Southern Westchester

Partly sunny with a 30 percent chance of Showers. Highs in the lower 70s.

Tonight 26 Sep Southern Westchester

Periods of rain with isolated Thunderstorms this Evening, then rain with isolated Thunderstorms after midnight. Rain may be heavy at Times after midnight. Very windy with Lows in the upper 50s. North Winds 25 to 35 Mph with Gusts up to 50 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mamaroneck Temperature Statistics

September Temperature

White Plains - Westchester County Airport (7.5 miles)

  • Lowest 24 September, 2026

    48.9 °F

  • Average September

    67 °F

  • Highest 10 September, 2026

    84 °F

Climate (2021–2026)

White Plains - Westchester County Airport (7.5 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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