Grass Island Weather Forecast

    • 65
    • 76

    Partly Sunny

    • 68
    • 73

    Rain Showers Likely

    • 67
    • 78

    Chance Thunderstorms

    • 64
    • 77

    Mostly Sunny

    • 65
    • 76

    Mostly Sunny

    • 69
    • 78

    Chance Rain Showers

Today 21 Aug Southern Fairfield

Partly sunny. A slight chance of Showers this morning. Highs in the upper 70s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 21 Aug Southern Fairfield

Partly cloudy. A slight chance of Showers in the evening. Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Island Temperature Statistics

August Temperature

White Plains - Westchester County Airport (8.7 miles)

  • Lowest 4 August, 2026

    61 °F

  • Average August

    75.1 °F

  • Highest 7 August, 2026

    89.1 °F

Climate (2021–2026)

White Plains - Westchester County Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54.1 °F

  • Average High 2021–2026

    62.3 °F
Get WillyWeather+ to remove ads