South Valley Stream Weather Forecast

    • 24
    • 38

    Slight Chance Snow

    • 31
    • 39

    Mostly Sunny

    • 32
    • 45

    Partly Sunny

    • 19
    • 39

    Chance Snow

    • 20
    • 28

    Chance Snow

    • 31
    • 37

    Rain Likely

Today 26 Feb Southern Nassau

Partly Sunny, then becoming partly sunny this Morning, then becoming mostly cloudy. A slight chance of snow this afternoon. Highs in the upper 30s. Northwest Winds around 5 Mph, becoming north this afternoon. Chance of snow 20 percent.

Tonight 26 Feb Southern Nassau

Mostly cloudy with a slight chance of snow in the Evening, then partly cloudy after midnight. Lows in the lower 20s. North Winds around 5 Mph. Chance of snow 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Valley Stream Temperature Statistics

February Temperature

New York, Kennedy International Airport (2.5 miles)

  • Lowest 8 February, 2026

    3.7 °F

  • Average February

    29.9 °F

  • Highest 21 February, 2026

    48.7 °F

Climate (2021–Present)

New York, Kennedy International Airport (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    63.5 °F
Get WillyWeather+ to remove ads