Hopatcong Weather Forecast

    • 67
    • 83

    Chance Thunderstorms

    • 61
    • 80

    Chance Thunderstorms

    • 61
    • 82

    Mostly Sunny

    • 63
    • 82

    Mostly Sunny

    • 70
    • 86

    Mostly Sunny

    • 67
    • 88

    Partly Sunny

    • 65
    • 86

    Partly Sunny

Today 10 Jul Sussex

Mostly cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the lower 80s. Northwest Winds around 5 Mph. Chance of rain 50 percent.

Tonight 10 Jul Sussex

Mostly cloudy. A chance of Showers and Thunderstorms this evening. Patchy fog. Lows in the mid 60s. West Winds around 5 Mph, becoming northeast after midnight. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

July Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 8 July, 2026

    62.1 °F

  • Average July

    75.9 °F

  • Highest 2 July, 2026

    97 °F

Climate (2021–2026)

Andover, Aeroflex-Andover Airport (6.2 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.6 °F
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