Hopatcong Weather Forecast

    • 50
    • 69

    Increasing Clouds

    • 55
    • 60

    Rain

    • 53
    • 69

    Partly Sunny

    • 58
    • 69

    Slight Chance Thunderstorms

    • 50
    • 70

    Partly Sunny

    • 49
    • 63

    Mostly Cloudy

    • 48
    • 61

    Chance Rain Showers

Today 10 Oct Sussex

Partly sunny. Highs in the upper 50s.

Tonight 10 Oct Sussex

Mostly cloudy. Lows in the upper 40s. Light and variable Winds, becoming east around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

October Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 7 October, 2026

    36 °F

  • Average October

    57.7 °F

  • Highest 2 October, 2026

    82 °F

Climate (2021–2026)

Andover, Aeroflex-Andover Airport (6.2 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    63.5 °F
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