Merrick Weather Forecast

    • 64
    • 80

    Rain Showers

    • 57
    • 73

    Rain Showers Likely

    • 58
    • 75

    Mostly Sunny

    • 59
    • 74

    Chance Rain Showers

    • 59
    • 73

    Chance Rain Showers

    • 57
    • 80

    Partly Sunny

    • 55
    • 73

    Partly Sunny

Today 6 Sep Southern Nassau

Showers and Thunderstorms likely. Some Thunderstorms may be severe with damaging Winds, large Hail, frequent Lightning, and heavy rainfall. Highs in the lower 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

Tonight 6 Sep Southern Nassau

Showers with a chance of Thunderstorms in the Evening, then Showers with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Some Thunderstorms may produce heavy rainfall after midnight. Humid with Lows in the mid 60s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming north 5 to 10 Mph after midnight. Chance of rain 90 percent.

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Merrick Temperature Statistics

September Temperature

Farmingdale - Republic Airport (8.1 miles)

  • Lowest 3 September, 2025

    57 °F

  • Average September

    66.8 °F

  • Highest 1 September, 2025

    75 °F

Climate (2020–Present)

Farmingdale - Republic Airport (8.1 miles)

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  • Average Low 2020–2025

    48.5 °F

  • Average 2020–2025

    56 °F

  • Average High 2020–2025

    63.4 °F
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