Grass Island Weather Forecast

    • 30
    • 40

    Increasing Clouds

    • 18
    • 40

    Breezy

    • 27
    • 31

    Chance Flurries

    • 30
    • 39

    Mostly Cloudy

    • 26
    • 39

    Mostly Cloudy

    • 22
    • 33

    Partly Sunny

Today 3 Dec Southern Fairfield

Sunny. Highs around 40. Northwest Winds 10 to 15 Mph. Gusts up to 25 Mph this morning.

Tonight 3 Dec Southern Fairfield

Partly cloudy. Lows in the upper 20s. West Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Real-Time

Grass Island Temperature Statistics

December Temperature

White Plains - Westchester County Airport (8.7 miles)

  • Lowest 1 December, 2025

    27 °F

  • Average December

    36.1 °F

  • Highest 1 December, 2025

    43 °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

    62.4 °F
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