Katonah Weather Forecast

    • 25
    • 37

    Decreasing Clouds

    • 12
    • 38

    Partly Sunny

    • 19
    • 29

    Slight Chance Rain/Snow

    • 23
    • 37

    Mostly Cloudy

    • 19
    • 37

    Mostly Cloudy

    • 11
    • 30

    Partly Sunny

    • 22
    • 32

    Chance Snow

Today 3 Dec Northern Westchester

Mostly sunny. Highs in the upper 30s. Northwest Winds around 5 Mph.

Tonight 3 Dec Northern Westchester

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 20s. Southwest Winds around 5 Mph.

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Katonah Temperature Statistics

December Temperature

Danbury, Danbury Municipal Airport (13 miles)

  • Lowest 1 December, 2025

    24.1 °F

  • Average December

    35.9 °F

  • Highest 1 December, 2025

    42.1 °F

Climate (2020–Present)

Danbury, Danbury Municipal Airport (13 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    53.7 °F

  • Average High 2020–2025

    63.3 °F
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