Old Greenwich Weather Forecast

    • 73
    • 95

    Slight Chance Thunderstorms

    • 70
    • 92

    Smoke

    • 70
    • 89

    Rain Showers Likely

    • 71
    • 86

    Rain Showers Likely

    • 66
    • 82

    Slight Chance Thunderstorms

    • 69
    • 82

    Slight Chance Thunderstorms

    • 69
    • 82

    Chance Thunderstorms

Today 15 Jul Southern Fairfield

Partly sunny with a slight chance of Showers and Thunderstorms. Areas of smoke. Highs in the mid 90s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent. Heat index Values up to 102.

Tonight 15 Jul Southern Fairfield

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy after midnight. Areas of smoke. Lows in the lower 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to around 5 Mph after midnight. Chance of rain 20 percent.

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Old Greenwich Temperature Statistics

July Temperature

White Plains - Westchester County Airport (7.5 miles)

  • Lowest 7 July, 2026

    61 °F

  • Average July

    76.1 °F

  • Highest 2 July, 2026

    98.1 °F

Climate (2021–2026)

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

    62.3 °F
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