Cos Cob Harbor Weather Forecast

    • 7
    • 22

    Becoming Sunny

    • 5
    • 17

    Mostly Sunny

    • 12
    • 20

    Chance Snow

    • 15
    • 23

    Chance Snow

    • 17
    • 32

    Mostly Sunny

    • 19
    • 33

    Partly Sunny

Today 29 Jan Southern Fairfield

Mostly sunny. Cold with Highs in the lower 20s. West Winds 5 to 10 Mph.

Tonight 29 Jan Southern Fairfield

Mostly clear. Cold with Lows around 4 above. Northwest Winds 10 to 15 Mph. Wind chill Values as low as 10 below after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cos Cob Harbor Temperature Statistics

January Temperature

White Plains - Westchester County Airport (6.2 miles)

  • Lowest 24 January, 2026

    8.1 °F

  • Average January

    29.8 °F

  • Highest 9 January, 2026

    51.1 °F

Climate (2021–Present)

White Plains - Westchester County Airport (6.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    62.3 °F
Get WillyWeather+ to remove ads