Climate almanac

Lake Hopatcong

New Jersey, United States · 40.95°, -74.62°

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What is the weather like in Lake Hopatcong in July?

In July, Lake Hopatcong is typically 85°F (29°C) during the day and 68°F (20°C) at night. The month brings about 5.1 in (130 mm) of precipitation in total.

  • Average high85°F (29°C)
  • Average low68°F (20°C)
  • Precipitation5.1 in (130 mm)
  • Clear or mostly clear days9
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)