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Photo: Lake Hopatcong from Sperry Springs, NJ, Jan. 2026 by Mr. Matté (if there is an issue with this image, contact me using this image's Commons talk page, my Commons user talk page, or my English Wikipedia user talk page; I'll know about it a lot faster) (CC BY-SA 4.0) License
Lake Hopatcong
Lake
Cool today
Bustling recreational lake for boating, water skiing & swimming, with waterfront eateries & bars.
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Weather at Lake Hopatcong
43°F, Clear · H 63° / L 42° · 5% chance of rain3-day forecast
H: 63° L: 42°
Clear
43°
|
Feels like 41°
Precipitation
5%
Humidity
76%
Wind
4 mph
UV Index
0
12 AM
46°
3 AM
43°
6 AM
42°
9 AM
47°
12 PM
59°
3 PM
62°
6 PM
53°
9 PM
46°
Frequently asked questions
- Where is Lake Hopatcong?
- Lake Hopatcong is a lake in New Jersey.
- Can you swim at Lake Hopatcong?
- There is no fixed answer for Lake Hopatcong: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Lake Hopatcong in New Jersey. Check current water conditions before you go, and follow posted signs and local guidance.
- How is Lake Hopatcong rated?
- Lake Hopatcong in New Jersey has an average visitor rating of 4.6 out of 5, based on 319 reviews.
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Pack smarter for Lake Hopatcong
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Location & Contact
New Jersey
New Jersey None
🏞️ Best times & visiting tips
- ›Check for boat launch facilities and fees
- ›Obtain required fishing licenses before arrival
- ›Be aware of lake-specific regulations and restrictions
- ›Monitor water quality reports before swimming
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