Hempstead Harbor Weather Forecast

    • 56
    • 83

    Rain Showers Likely

    • 52
    • 60

    Slight Chance Rain Showers

    • 50
    • 59

    Rain Showers

    • 50
    • 54

    Rain Showers

    • 54
    • 64

    Chance Rain Showers

    • 58
    • 73

    Slight Chance Rain Showers

Today 20 May Northern Nassau

Sunny this Morning, then partly sunny with Showers likely with a chance of Thunderstorms this afternoon. Highs in the lower 90s. West Winds 10 to 15 Mph. Chance of rain 60 percent. Heat index Values in the mid 90s.

Tonight 20 May Northern Nassau

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows in the upper 50s. North Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hempstead Harbor Temperature Statistics

May Temperature

New York, La Guardia Airport (11.8 miles)

  • Lowest 3 May, 2026

    46.7 °F

  • Average May

    62.3 °F

  • Highest 17 May, 2026

    89.7 °F

Climate (2021–Present)

New York, La Guardia Airport (11.8 miles)

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  • Average Low 2021–2026

    51.3 °F

  • Average 2021–2026

    57.5 °F

  • Average High 2021–2026

    64.5 °F
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