Hopatcong Weather Forecast

    • 33
    • 61

    Sunny

    • 37
    • 64

    Sunny

    • 42
    • 67

    Mostly Sunny

    • 34
    • 59

    Mostly Sunny

    • 41
    • 59

    Partly Sunny

    • 46
    • 65

    Mostly Sunny

    • 46
    • 69

    Mostly Sunny

Today 24 Oct Sussex

Mostly sunny. Highs in the upper 60s.

Tonight 24 Oct Sussex

Clear, cold with Lows in the lower 30s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

October Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 18 October, 2026

    30 °F

  • Average October

    55 °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

    43.5 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    63.5 °F
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