Great South Bay Weather Forecast

    • 37
    • 40

    Rain

    • 36
    • 43

    Rain Likely

    • 38
    • 42

    Rain Likely

    • 37
    • 42

    Cloudy

    • 44
    • 48

    Rain Likely

    • 42
    • 51

    Chance Rain

Today 3 Mar Southwest Suffolk

Rain, a chance of snow and freezing rain this Morning, then rain this afternoon. Little or no snow accumulation. Highs around 40. East Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

Tonight 3 Mar Southwest Suffolk

Rain. Near steady temperature in the upper 30s. South Winds 5 to 10 Mph, becoming west with Gusts up to 20 Mph after midnight. Chance of rain near 100 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Great South Bay Temperature Statistics

March Temperature

Islip, Long Island Mac Arthur Airport (8.1 miles)

  • Lowest 1 March, 2026

    27 °F

  • Average March

    33.4 °F

  • Highest 1 March, 2026

    37.9 °F

Climate (2021–Present)

Islip, Long Island Mac Arthur Airport (8.1 miles)

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

  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    63 °F
Get WillyWeather+ to remove ads