Hempstead Lake Weather Forecast

    • 64
    • 72

    Rain Showers Likely

    • 65
    • 80

    Partly Sunny

    • 59
    • 84

    Mostly Sunny

    • 58
    • 73

    Mostly Sunny

    • 60
    • 71

    Partly Sunny

    • 62
    • 75

    Partly Sunny

    • 64
    • 78

    Partly Sunny

Today 17 Sep Southern Nassau

Showers likely with a chance of Thunderstorms. Near steady temperature around 70. Northeast Winds around 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 17 Sep Southern Nassau

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Patchy fog after midnight. Lows in the mid 60s. Northeast Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening. Chance of rain 70 percent.

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Hempstead Lake Temperature Statistics

September Temperature

New York, Kennedy International Airport (6.8 miles)

  • Lowest 8 September, 2025

    55.9 °F

  • Average September

    68.4 °F

  • Highest 6 September, 2025

    81 °F

Climate (2020–Present)

New York, Kennedy International Airport (6.8 miles)

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  • Average Low 2020–2025

    49.6 °F

  • Average 2020–2025

    56.4 °F

  • Average High 2020–2025

    63.7 °F
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