South Valley Stream Weather Forecast

    • 34
    • 53

    Chance Rain Showers

    • 44
    • 52

    Slight Chance Rain Showers

    • 46
    • 59

    Slight Chance Rain Showers

    • 50
    • 65

    Partly Sunny

    • 48
    • 64

    Chance Rain Showers

    • 47
    • 59

    Chance Rain Showers

Today 20 Apr Southern Nassau

Mostly cloudy in the Morning, then becoming partly sunny. A 40 percent chance of Showers. Highs in the lower 50s. Northwest Winds 10 to 15 Mph.

Tonight 20 Apr Southern Nassau

Partly cloudy in the Evening, then clearing. Lows in the lower 30s. Northwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Valley Stream Temperature Statistics

April Temperature

New York, Kennedy International Airport (2.5 miles)

  • Lowest 8 April, 2026

    30.7 °F

  • Average April

    54.6 °F

  • Highest 14 April, 2026

    80.7 °F

Climate (2021–Present)

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

    63.5 °F
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