South Valley Stream Weather Forecast

    • 35
    • 49

    Mostly Sunny

    • 36
    • 46

    Partly Sunny

    • 45
    • 50

    Rain Likely

    • 42
    • 52

    Rain

    • 30
    • 50

    Chance Rain Showers

    • 31
    • 39

    Mostly Sunny

    • 32
    • 42

    Mostly Cloudy

Today 7 Jan Southern Nassau

Mostly sunny. Highs in the upper 40s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 7 Jan Southern Nassau

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 30s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • 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

    28.6 °F

  • Highest 5 January, 2026

    37 °F

Climate (2021–Present)

New York, Kennedy International Airport (2.5 miles)

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  • Average Low 2021–2026

    49.4 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    63.5 °F
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