Hardyston Township Weather Forecast

    • 57
    • 69

    Rain Showers

    • 55
    • 68

    Mostly Cloudy

    • 57
    • 79

    Mostly Sunny

    • 61
    • 80

    Slight Chance Rain Showers

    • 63
    • 77

    Chance Rain Showers

    • 55
    • 77

    Chance Rain Showers

Today 20 Aug Sussex

Cloudy. A chance of Showers this Morning, then Showers with a chance of Thunderstorms this afternoon. Highs around 70. East Winds 5 to 10 Mph. Chance of rain 80 percent.

Tonight 20 Aug Sussex

Cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows in the mid 50s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

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Hardyston Township Temperature Statistics

August Temperature

Sussex, Sussex Airport (6.8 miles)

  • Lowest 9 August, 2025

    51.7 °F

  • Average August

    73.1 °F

  • Highest 12 August, 2025

    92.6 °F

Climate (2020–Present)

Sussex, Sussex Airport (6.8 miles)

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  • Average Low 2020–2025

    42.3 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    63.3 °F
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