Long Island Weather Forecast

    • 75
    • 91

    Increasing Clouds

    • 69
    • 87

    Rain Showers Likely

    • 69
    • 86

    Slight Chance Thunderstorms

    • 71
    • 85

    Chance Thunderstorms

    • 71
    • 86

    Thunderstorms Likely

    • 71
    • 88

    Chance Thunderstorms

Today 21 Jul Jackson

Mostly Sunny, then becoming partly cloudy this late morning and early Afternoon, then becoming mostly sunny. Highs around 90. Light and variable Winds. Heat index Readings 99 to 104.

Tonight 21 Jul Jackson

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers and a slight chance of Thunderstorms after midnight. Lows in the mid 70s. Light and variable Winds. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Long Island Temperature Statistics

July Temperature

Winchester Municipal Airport (26.1 miles)

  • Lowest 3 July, 2026

    69.8 °F

  • Average July

    78.4 °F

  • Highest 1 July, 2026

    95 °F

Climate (2021–2026)

Winchester Municipal Airport (26.1 miles)

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

  • Average Low 2021–2026

    50.8 °F

  • Average 2021–2026

    61.3 °F

  • Average High 2021–2026

    71.6 °F
Get WillyWeather+ to remove ads