Old Greenwich Weather Forecast

    • 56
    • 75

    Increasing Clouds

    • 52
    • 73

    Mostly Sunny

    • 53
    • 72

    Chance Rain Showers

    • 55
    • 72

    Slight Chance Rain Showers

    • 60
    • 79

    Partly Sunny

    • 65
    • 87

    Partly Sunny

Today 31 May Southern Fairfield

Sunny in the Morning, then becoming partly sunny. Highs in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 31 May Southern Fairfield

Partly cloudy. Lows in the mid 50s. West Winds 5 to 10 Mph.

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Old Greenwich Temperature Statistics

May Temperature

White Plains - Westchester County Airport (7.5 miles)

  • Lowest 12 May, 2026

    41 °F

  • Average May

    60.1 °F

  • Highest 19 May, 2026

    93 °F

Climate (2021–Present)

White Plains - Westchester County Airport (7.5 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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