Grass Island Weather Forecast

    • 48
    • 69

    Rain Showers

    • 40
    • 52

    Chance Rain

    • 45
    • 55

    Mostly Sunny

    • 49
    • 60

    Partly Sunny

    • 52
    • 63

    Mostly Sunny

    • 50
    • 63

    Mostly Sunny

    • 51
    • 61

    Partly Sunny

Today 16 Oct Southern Fairfield

Mostly sunny. Highs in the mid 60s.

Tonight 16 Oct Southern Fairfield

Mostly cloudy. Showers with a chance of Thunderstorms this Evening, then a chance of rain after midnight. Some Thunderstorms may produce gusty Winds this evening. Breezy with Lows in the upper 40s. West Winds 10 to 15 Mph, increasing to northwest 20 to 25 Mph after midnight. Chance of rain 90 percent.

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Grass Island Temperature Statistics

October Temperature

White Plains - Westchester County Airport (8.7 miles)

  • Lowest 7 October, 2026

    39.9 °F

  • Average October

    60.1 °F

  • Highest 2 October, 2026

    82.9 °F

Climate (2021–2026)

White Plains - Westchester County Airport (8.7 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    62.2 °F
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