Hopatcong Weather Forecast

    • 45
    • 74

    Rain Showers Likely

    • 28
    • 51

    Rain Showers Likely

    • 33
    • 44

    Mostly Cloudy

    • 31
    • 46

    Slight Chance Rain/Snow

    • 44
    • 53

    Rain

    • 22
    • 57

    Chance Rain/Snow

Today 11 Mar Sussex

Mostly sunny with a slight chance of Showers this Morning, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds this afternoon. Highs in the mid 70s. South Winds 5 to 10 Mph. Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 11 Mar Sussex

Showers likely with a chance of Thunderstorms. Some Thunderstorms may produce gusty Winds. Lows in the mid 40s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hopatcong Temperature Statistics

March Temperature

Andover, Aeroflex-Andover Airport (6.2 miles)

  • Lowest 2 March, 2026

    17.1 °F

  • Average March

    37 °F

  • Highest 8 March, 2026

    64.9 °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

    63.7 °F
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