Old Greenwich Weather Forecast

    • 65
    • 82

    Mostly Sunny

    • 69
    • 87

    Mostly Sunny

    • 70
    • 90

    Mostly Sunny

    • 72
    • 90

    Mostly Sunny

    • 73
    • 90

    Chance Rain Showers

    • 71
    • 89

    Slight Chance Thunderstorms

Today 9 Aug Southern Fairfield

Sunny. Highs in the lower 80s. Northeast Winds around 5 Mph, becoming southeast this afternoon.

Tonight 9 Aug Southern Fairfield

Clear. Lows in the lower 60s. Southeast Winds around 5 Mph, becoming west after midnight.

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Old Greenwich Temperature Statistics

August Temperature

White Plains - Westchester County Airport (7.5 miles)

  • Lowest 3 August, 2025

    57.9 °F

  • Average August

    70.8 °F

  • Highest 4 August, 2025

    86 °F

Climate (2020–Present)

White Plains - Westchester County Airport (7.5 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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