South Valley Stream Weather Forecast

    • 22
    • 42

    Gradual Clearing

    • 32
    • 36

    Partly Sunny

    • 29
    • 43

    Chance Rain/Snow

    • 22
    • 33

    Chance Snow

    • 19
    • 32

    Partly Sunny

    • 17
    • 27

    Partly Sunny

Today 15 Jan Southern Nassau

Mostly cloudy this Morning, then becoming partly sunny. Highs in the lower 40s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 15 Jan Southern Nassau

Mostly cloudy. Cooler with Lows in the lower 20s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Real-Time

South Valley Stream Temperature Statistics

January Temperature

New York, Kennedy International Airport (2.5 miles)

  • Lowest 2 January, 2026

    21 °F

  • Average January

    36 °F

  • Highest 9 January, 2026

    53.1 °F

Climate (2021–Present)

New York, Kennedy International Airport (2.5 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    63.6 °F
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