Greenlawn Weather Forecast

    • 59
    • 76

    Partly Sunny

    • 61
    • 77

    Partly Sunny

    • 63
    • 78

    Mostly Cloudy

    • 62
    • 81

    Partly Sunny

    • 65
    • 82

    Mostly Sunny

    • 67
    • 82

    Chance Rain Showers

Today 18 Aug Northwest Suffolk

Mostly sunny. Highs in the mid 70s. East Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 18 Aug Northwest Suffolk

Partly cloudy in the Evening, then becoming mostly clear. Lows in the upper 50s. East Winds 5 to 10 Mph.

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Greenlawn Temperature Statistics

August Temperature

Farmingdale - Republic Airport (9.3 miles)

  • Lowest 8 August, 2025

    58.6 °F

  • Average August

    73.8 °F

  • Highest 14 August, 2025

    88.6 °F

Climate (2020–Present)

Farmingdale - Republic Airport (9.3 miles)

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  • Average Low 2020–2025

    48.6 °F

  • Average 2020–2025

    56 °F

  • Average High 2020–2025

    63.4 °F
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