Grass Island Weather Forecast

    • 30
    • 56

    Rain Showers

    • 36
    • 39

    Partly Sunny

    • 27
    • 44

    Breezy

    • 30
    • 34

    Partly Sunny

    • 35
    • 39

    Chance Rain/Snow

    • 33
    • 43

    Mostly Cloudy

Today 19 Dec Southern Fairfield

Showers with a slight chance of Thunderstorms this Morning, then a chance of Showers this afternoon. Windy with Highs in the mid 50s. South Winds 20 to 30 Mph, becoming southwest 15 to 25 Mph this afternoon. Gusts up to 45 Mph. Chance of rain near 100 percent.

Tonight 19 Dec Southern Fairfield

Partly cloudy and Breezy, cooler with Lows in the mid 20s. West Winds 15 to 25 Mph. Gusts up to 45 Mph, decreasing to 35 Mph after midnight.

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Grass Island Temperature Statistics

December Temperature

White Plains - Westchester County Airport (8.7 miles)

  • Lowest 5 December, 2025

    14 °F

  • Average December

    30.1 °F

  • Highest 10 December, 2025

    44.1 °F

Climate (2020–Present)

White Plains - Westchester County Airport (8.7 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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