Hopatcong Weather Forecast

    • 43
    • 60

    Chance Rain Showers

    • 47
    • 58

    Rain Showers

    • 44
    • 71

    Rain Showers

    • 39
    • 58

    Slight Chance Rain Showers

    • 42
    • 59

    Partly Sunny

    • 44
    • 61

    Chance Rain Showers

Today 8 May Sussex

Sunny this Morning, then partly sunny with a slight chance of Showers this afternoon. Highs in the upper 50s. West Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 8 May Sussex

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers after midnight. Lows in the lower 40s. West Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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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

    54.6 °F

  • Highest 5 May, 2026

    82 °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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