Hempstead Harbor Weather Forecast

    • 69
    • 79

    Rain Showers Likely

    • 69
    • 77

    Chance Rain Showers

    • 67
    • 77

    Rain Showers Likely

    • 66
    • 83

    Chance Thunderstorms

    • 63
    • 82

    Mostly Sunny

    • 65
    • 81

    Partly Sunny

Today 20 Aug Northern Nassau

Sunny in the Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the lower 80s. North Winds around 5 Mph, becoming northeast around 5 Mph in the afternoon. Chance of rain 50 percent.

Tonight 20 Aug Northern Nassau

Mostly cloudy. Showers likely with a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the mid 60s. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hempstead Harbor Temperature Statistics

August Temperature

New York, La Guardia Airport (11.8 miles)

  • Lowest 16 August, 2026

    68.6 °F

  • Average August

    80.8 °F

  • Highest 7 August, 2026

    94.6 °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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