Chappaqua Weather Forecast

    • 50
    • 67

    Partly Sunny

    • 53
    • 68

    Chance Rain Showers

    • 52
    • 63

    Rain Showers Likely

    • 54
    • 62

    Chance Rain Showers

    • 52
    • 65

    Partly Sunny

    • 54
    • 70

    Partly Sunny

Today 24 Sep Northern Westchester

Sunny. Highs in the upper 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 24 Sep Northern Westchester

Mostly cloudy. Lows around 50. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chappaqua Temperature Statistics

September Temperature

White Plains - Westchester County Airport (7.5 miles)

  • Lowest 15 September, 2026

    51.1 °F

  • Average September

    68.3 °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

    62.3 °F
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