Cos Cob Harbor Weather Forecast

    • 24
    • 32

    Decreasing Clouds

    • 29
    • 43

    Partly Sunny

    • 45
    • 51

    Rain Showers

    • 27
    • 54

    Slight Chance Rain Showers

    • 34
    • 39

    Mostly Cloudy

    • 30
    • 45

    Mostly Cloudy

Today 16 Dec Southern Fairfield

Mostly cloudy Early, then clearing. Highs in the lower 30s. West Winds around 5 Mph. Gusts up to 20 Mph early.

Tonight 16 Dec Southern Fairfield

Partly cloudy in the Evening, then clearing. Lows in the mid 20s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cos Cob Harbor Temperature Statistics

December Temperature

White Plains - Westchester County Airport (6.2 miles)

  • Lowest 5 December, 2025

    14 °F

  • Average December

    30.8 °F

  • Highest 10 December, 2025

    44.1 °F

Climate (2020–Present)

White Plains - Westchester County Airport (6.2 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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