Ronkonkoma Weather Forecast

    • 57
    • 63

    Rain

    • 51
    • 63

    Chance Rain

    • 54
    • 66

    Mostly Cloudy

    • 56
    • 68

    Chance Rain Showers

    • 56
    • 69

    Chance Rain Showers

    • 56
    • 70

    Chance Rain Showers

Today 25 Sep Southwest Suffolk

Rain. Widespread fog. Breezy. Near steady temperature in the lower 60s. Northeast Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 90 percent.

Tonight 25 Sep Southwest Suffolk

Cloudy. Widespread fog in the evening. Rain Likely, mainly in the evening. Breezy with Lows in the upper 50s. Northeast Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Ronkonkoma Temperature Statistics

September Temperature

Islip, Long Island Mac Arthur Airport (1.2 miles)

  • Lowest 17 September, 2023

    50.6 °F

  • Average September

    71.4 °F

  • Highest 6 September, 2023

    92.6 °F

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (1.2 miles)

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

  • Average Low 2010–Present

    47.7 °F

  • Average 2010–Present

    55.4 °F

  • Average High 2010–Present

    63 °F
Get an account to remove ads