Greenwich Weather Forecast

    • 60
    • 79

    Rain Showers

    • 57
    • 72

    Mostly Sunny

    • 58
    • 77

    Mostly Sunny

    • 63
    • 81

    Partly Sunny

    • 70
    • 82

    Chance Rain Showers

    • 60
    • 83

    Partly Sunny

    • 56
    • 74

    Partly Sunny

Today 5 Sep Southern Fairfield

Sunny. Highs in the upper 70s. North Winds 5 to 10 Mph.

Tonight 5 Sep Southern Fairfield

Partly cloudy this Evening, then becoming mostly cloudy. A 50 percent chance of Showers. Lows in the upper 50s. Northeast Winds 5 to 10 Mph.

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Greenwich Temperature Statistics

September Temperature

White Plains - Westchester County Airport (5 miles)

  • Lowest 2 September, 2026

    62.1 °F

  • Average September

    69.6 °F

  • Highest 3 September, 2026

    82.9 °F

Climate (2021–2026)

White Plains - Westchester County Airport (5 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    62.3 °F
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