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Photo: Island Beach Park, Mountain Lakes, NJ (3), Nov. 2024 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

Mountain Lake

Lake · Mountain Lakes, New Jersey

Rainy today

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Current water conditions

Water temp
76°F
24°C
Comfortable for a swim today. The water's in a comfortable range. Still check depth, currents, and the forecast, and follow any posted advisories before getting in.

Live data from NOAA buoy BATN6 (25.9 mi away), as of Aug 21, 12:54 AM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Mountain Lake

H: 82° L: 65°
Heavy rain
Heavy rain
66°
|
Feels like 65°
Precipitation
78%
Humidity
88%
Wind
10 mph
UV Index
0
Water Conditions:
🏊Cool but swimmable🌧️Rain expected
12 AM
Clear
70°
3 AM
Clear
67°
6 AM
Clear
66°
9 AM
Sunny
75°
12 PM
Cloudy
80°
3 PM
Light drizzle
75°
6 PM
Moderate rain
71°
9 PM
Heavy rain
66°

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Frequently asked questions

Where is Mountain Lake?
Mountain Lake is a lake in Mountain Lakes, New Jersey.
What is the water temperature at Mountain Lake?
As of August 21, 2026, the water temperature at Mountain Lake in Mountain Lakes, New Jersey is 76°F (24°C), measured by NOAA buoy BATN6, 25.9 miles away.
Can you swim at Mountain Lake?
There is no fixed answer for Mountain Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Mountain Lake in Mountain Lakes, New Jersey. Check current water conditions before you go, and follow posted signs and local guidance.
How is Mountain Lake rated?
Mountain Lake in Mountain Lakes, New Jersey has an average visitor rating of 5 out of 5, based on 6 reviews.

Visitor Reviews

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Best Times to Visit

🌧️
Right Now
Not ideal for outdoor activities today
🏞️ Lakes 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
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Mountain Lakes, NJ 07046

Mountain Lakes, New Jersey 07046

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