South Valley Stream Weather Forecast

    • 64
    • 81

    Mostly Sunny

    • 67
    • 82

    Mostly Sunny

    • 70
    • 81

    Chance Rain Showers

    • 69
    • 80

    Rain Showers

    • 68
    • 80

    Chance Thunderstorms

    • 69
    • 83

    Chance Rain Showers

    • 70
    • 84

    Partly Sunny

Today 25 Jul Southern Nassau

Sunny. Highs in the lower 80s. Southeast Winds 10 to 15 Mph.

Tonight 25 Jul Southern Nassau

Mostly clear. Lows in the mid 60s. East Winds 5 to 10 Mph, becoming northeast after midnight.

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South Valley Stream Temperature Statistics

July Temperature

New York, Kennedy International Airport (2.5 miles)

  • Lowest 20 July, 2026

    63.6 °F

  • Average July

    78.3 °F

  • Highest 2 July, 2026

    102.7 °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

    56.2 °F

  • Average High 2021–2026

    63.6 °F
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