Hopatcong Weather Forecast

    • 40
    • 65

    Mostly Cloudy

    • 37
    • 46

    Rain

    • 38
    • 52

    Chance Rain Showers

    • 40
    • 60

    Partly Sunny

    • 46
    • 57

    Rain Showers Likely

    • 45
    • 61

    Chance Rain Showers

Today 24 Apr Sussex

Mostly cloudy this Morning, then becoming partly sunny. Highs in the mid 60s. North Winds around 5 Mph, becoming northwest this afternoon.

Tonight 24 Apr Sussex

Mostly cloudy. A slight chance of rain in the Evening, then a chance of rain after midnight. Lows around 40. North Winds 5 to 10 Mph, becoming northeast with Gusts up to 20 Mph after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

April Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 8 April, 2026

    25 °F

  • Average April

    53.4 °F

  • Highest 16 April, 2026

    88 °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

    53.7 °F

  • Average High 2021–2026

    63.7 °F
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