Cos Cob Weather Forecast

    • 49
    • 69

    Rain Showers

    • 45
    • 66

    Chance Rain Showers

    • 49
    • 65

    Chance Rain Showers

    • 50
    • 66

    Rain Showers Likely

    • 52
    • 76

    Mostly Cloudy

    • 46
    • 67

    Rain Showers Likely

Today 6 May Southern Fairfield

Mostly cloudy. Showers this afternoon. Highs in the upper 60s. South Winds 15 to 20 Mph. Chance of rain 80 percent.

Tonight 6 May Southern Fairfield

Mostly cloudy. Showers Likely, mainly in the evening. Lows in the upper 40s. Southwest Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cos Cob Temperature Statistics

May Temperature

White Plains - Westchester County Airport (5.6 miles)

  • Lowest 1 May, 2026

    43 °F

  • Average May

    52.8 °F

  • Highest 4 May, 2026

    71.1 °F

Climate (2021–Present)

White Plains - Westchester County Airport (5.6 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    62.2 °F
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