Hempstead Harbor Weather Forecast

    • 70
    • 83

    Slight Chance Rain Showers

    • 65
    • 77

    Mostly Sunny

    • 67
    • 77

    Mostly Cloudy

    • 67
    • 80

    Slight Chance Rain Showers

    • 64
    • 81

    Partly Sunny

    • 68
    • 80

    Partly Sunny

Today 10 Sep Northern Nassau

Partly sunny. A slight chance of Showers this morning. Highs in the mid 80s. West Winds 10 to 15 Mph. Gusts up to 25 Mph this morning. Chance of rain 20 percent.

Tonight 10 Sep Northern Nassau

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows in the upper 60s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hempstead Harbor Temperature Statistics

September Temperature

New York, La Guardia Airport (11.8 miles)

  • Lowest 7 September, 2026

    66 °F

  • Average September

    75.3 °F

  • Highest 3 September, 2026

    88.6 °F

Climate (2021–2026)

New York, La Guardia Airport (11.8 miles)

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  • Average Low 2021–2026

    51.3 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    64.6 °F
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