South Valley Stream Weather Forecast

    • 25
    • 37

    Increasing Clouds

    • 32
    • 37

    Mostly Cloudy

    • 37
    • 43

    Chance Rain

    • 34
    • 49

    Partly Sunny

    • 40
    • 47

    Chance Rain

    • 42
    • 50

    Rain Likely

    • 34
    • 51

    Chance Rain

Today 4 Jan Southern Nassau

Mostly sunny. Near steady temperature in the mid 30s. Northwest Winds 10 to 15 Mph.

Tonight 4 Jan Southern Nassau

Mostly clear. Lows in the mid 20s. Northwest Winds 10 to 15 Mph.

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South Valley Stream Temperature Statistics

January Temperature

New York, Kennedy International Airport (2.5 miles)

  • Lowest 2 January, 2026

    21 °F

  • Average January

    26.7 °F

  • Highest 1 January, 2026

    36 °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

    56.2 °F

  • Average High 2021–2026

    63.6 °F
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