Hopatcong Weather Forecast

    • 58
    • 80

    Mostly Sunny

    • 62
    • 81

    Mostly Sunny

    • 64
    • 83

    Rain Showers Likely

    • 63
    • 79

    Rain Showers

    • 61
    • 77

    Chance Thunderstorms

    • 62
    • 81

    Slight Chance Rain Showers

Today 25 Jul Sussex

Sunny. Highs in the lower 80s. East Winds around 5 Mph.

Tonight 25 Jul Sussex

Mostly clear. Lows in the mid 50s. Southeast Winds around 5 Mph, becoming north after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

July Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 17 July, 2026

    60.1 °F

  • Average July

    74.8 °F

  • Highest 2 July, 2026

    97 °F

Climate (2021–2026)

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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