Hopatcong Weather Forecast

    • 62
    • 89

    Severe Tstms

    • 64
    • 85

    Mostly Sunny

    • 59
    • 86

    Rain Showers

    • 53
    • 73

    Partly Sunny

    • 56
    • 75

    Partly Sunny

    • 59
    • 78

    Chance Rain Showers

    • 62
    • 84

    Rain Showers Likely

Today 12 Jun Sussex

Mostly sunny. Patchy fog this morning. Showers and Thunderstorms likely this afternoon. Some Thunderstorms may produce damaging Winds this afternoon. Hot with Highs in the lower 90s. West Winds 5 to 10 Mph. Chance of rain 60 percent.

Tonight 12 Jun Sussex

Mostly cloudy with Showers likely with a chance of Thunderstorms this Evening, then partly cloudy after midnight. Some Thunderstorms may be severe with damaging Winds. Lows in the lower 60s. Northwest Winds 5 to 10 Mph. Chance of rain 70 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

    67.5 °F

  • Highest 5 June, 2026

    89.1 °F

Climate (2021–Present)

Andover, Aeroflex-Andover Airport (6.2 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.6 °F
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