Hopatcong Weather Forecast

    • 45
    • 67

    Increasing Clouds

    • 35
    • 58

    Mostly Sunny

    • 46
    • 59

    Mostly Cloudy

    • 57
    • 73

    Mostly Cloudy

    • 60
    • 79

    Mostly Cloudy

    • 60
    • 82

    Chance Rain Showers

Today 10 Apr Sussex

Partly sunny this Morning, then clearing. Warmer with Highs in the upper 60s. Southwest Winds 5 to 10 Mph.

Tonight 10 Apr Sussex

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the mid 40s. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

April Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 7 April, 2026

    30 °F

  • Average April

    49.3 °F

  • Highest 1 April, 2026

    75.9 °F

Climate (2021–Present)

Andover, Aeroflex-Andover Airport (6.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.6 °F
Get WillyWeather+ to remove ads