Hopatcong Weather Forecast

    • 48
    • 75

    Becoming Sunny

    • 45
    • 64

    Partly Sunny

    • 52
    • 74

    Mostly Sunny

    • 51
    • 73

    Slight Chance Rain Showers

    • 50
    • 71

    Chance Rain Showers

    • 53
    • 71

    Slight Chance Rain Showers

Today 29 May Sussex

Sunny. Highs in the mid 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 29 May Sussex

Mostly cloudy in the Evening, then clearing. Lows in the upper 40s. Northwest Winds 10 to 15 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

May Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 1 May, 2026

    36 °F

  • Average May

    59.6 °F

  • Highest 19 May, 2026

    93 °F

Climate (2021–Present)

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

    63.6 °F
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