Ronkonkoma Weather Forecast

    • 18
    • 31

    Becoming Sunny

    • 21
    • 33

    Partly Sunny

    • 25
    • 36

    Chance Snow

    • 24
    • 34

    Snow Likely

    • 23
    • 37

    Mostly Sunny

    • 22
    • 35

    Partly Sunny

Today 23 Jan Southwest Suffolk

Mostly sunny and brisk. Highs in the lower 30s. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph.

Tonight 23 Jan Southwest Suffolk

Mostly clear and brisk. Lows around 20. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ronkonkoma Temperature Statistics

January Temperature

Islip, Long Island Mac Arthur Airport (1.2 miles)

  • Lowest 21 January, 2021

    17.1 °F

  • Average January

    35.5 °F

  • Highest 2 January, 2021

    52 °F

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (1.2 miles)

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  • Average Low 2010–Present

    46.7 °F

  • Average 2010–Present

    53.9 °F

  • Average High 2010–Present

    61.2 °F
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