Hopatcong Weather Forecast

    • 57
    • 80

    Sunny

    • 56
    • 77

    Mostly Sunny

    • 59
    • 80

    Rain Showers

    • 59
    • 74

    Rain Showers

    • 57
    • 79

    Mostly Sunny

    • 59
    • 80

    Partly Sunny

    • 60
    • 79

    Chance Thunderstorms

Today 19 Jun Sussex

Mostly sunny. Highs in the upper 70s. West Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 19 Jun Sussex

Clear. Lows in the upper 50s. West Winds 5 to 10 Mph. Gusts up to 25 Mph this evening.

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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

    68.8 °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

    63.7 °F
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