Mount Vernon Weather Forecast

    • 72
    • 85

    Increasing Clouds

    • 74
    • 90

    Chance Thunderstorms

    • 73
    • 90

    Chance Thunderstorms

    • 72
    • 88

    Chance Rain Showers

    • 73
    • 88

    Mostly Sunny

    • 73
    • 89

    Slight Chance Thunderstorms

Today 5 Aug Southern Westchester

Mostly sunny. Highs in the mid 80s. Northeast Winds around 5 Mph, becoming south this afternoon.

Tonight 5 Aug Southern Westchester

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Humid with Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

August Temperature

New York, La Guardia Airport (9.3 miles)

  • Lowest 1 August, 2026

    74.6 °F

  • Average August

    80.4 °F

  • Highest 1 August, 2026

    87.7 °F

Climate (2021–2026)

New York, La Guardia Airport (9.3 miles)

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  • Average Low 2021–2026

    51.3 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    64.6 °F
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