Hartsdale Weather Forecast

    • 30
    • 36

    Increasing Clouds

    • 24
    • 43

    Partly Sunny

    • 27
    • 36

    Partly Sunny

    • 32
    • 39

    Chance Rain/Snow

    • 28
    • 41

    Partly Sunny

    • 38
    • 44

    Chance Rain

Today 20 Dec Southern Westchester

Sunny in the Morning, then becoming partly sunny. Much cooler with Highs in the upper 30s. West Winds 10 to 15 Mph. Gusts up to 25 Mph in the morning.

Tonight 20 Dec Southern Westchester

Mostly cloudy. Lows in the lower 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartsdale Temperature Statistics

December Temperature

White Plains - Westchester County Airport (5.6 miles)

  • Lowest 5 December, 2025

    14 °F

  • Average December

    30.4 °F

  • Highest 10 December, 2025

    44.1 °F

Climate (2020–Present)

White Plains - Westchester County Airport (5.6 miles)

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    54.1 °F

  • Average High 2020–2025

    62.3 °F
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