Hopatcong Weather Forecast

    • 62
    • 81

    Chance Rain Showers

    • 62
    • 73

    Chance Rain Showers

    • 62
    • 81

    Partly Sunny

    • 64
    • 83

    Partly Sunny

    • 68
    • 86

    Slight Chance Thunderstorms

    • 71
    • 90

    Slight Chance Thunderstorms

    • 72
    • 91

    Mostly Sunny

Today 26 Jun Sussex

Partly sunny. Near steady temperature in the lower 80s. West Winds around 5 Mph.

Tonight 26 Jun Sussex

Mostly cloudy. A slight chance of Showers after midnight. Lows in the lower 60s. West Winds around 5 Mph this Evening, becoming light and variable. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

June Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 2 June, 2026

    45 °F

  • Average June

    68.6 °F

  • Highest 11 June, 2026

    91 °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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