South Valley Stream Weather Forecast

    • 75
    • 91

    Mostly Sunny

    • 73
    • 92

    Mostly Sunny

    • 75
    • 90

    Chance Rain Showers

    • 71
    • 90

    Chance Thunderstorms

    • 71
    • 86

    Chance Rain Showers

    • 70
    • 85

    Chance Rain Showers

    • 67
    • 84

    Partly Sunny

Today 8 Aug Southern Nassau

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the lower 90s. Southwest Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent. Heat index Values up to 101.

Tonight 8 Aug Southern Nassau

Partly cloudy with a slight chance of Showers and Thunderstorms this Evening, then mostly clear after midnight. Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Real-Time

South Valley Stream Temperature Statistics

August Temperature

New York, Kennedy International Airport (2.5 miles)

  • Lowest 4 August, 2026

    66.7 °F

  • Average August

    77.9 °F

  • Highest 6 August, 2026

    86 °F

Climate (2021–2026)

New York, Kennedy International Airport (2.5 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    63.6 °F
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