Ronkonkoma Weather Forecast

    • 61
    • 79

    Mostly Sunny

    • 68
    • 86

    Partly Sunny

    • 59
    • 90

    Partly Sunny

    • 61
    • 76

    Mostly Cloudy

    • 59
    • 80

    Chance Rain

    • 58
    • 75

    Chance Rain

Today 29 May Southwest Suffolk

Sunny. Highs in the upper 70s. Northeast Winds around 5 Mph, becoming south this afternoon.

Tonight 29 May Southwest Suffolk

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows around 60. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ronkonkoma Temperature Statistics

May Temperature

Islip, Long Island Mac Arthur Airport (1.2 miles)

  • Lowest 1 May, 2022

    39 °F
  • Average May

    59.4 °F
  • Highest 21 May, 2022

    82.9 °F

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (1.2 miles)

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  • Average Low 2010–Present

    46.1 °F
  • Average 2010–Present

    53.5 °F
  • Average High 2010–Present

    60.8 °F
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