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Photo: View of Treasure Island at Camp Lone Tree on Long Lake, at Three Rivers, Michigan (67851) by Tichnor Brothers, Publisher (Public domain) License

Cool water — ease in carefully

Use caution

Cool water — ease in carefully: water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry.

  • Water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry.
Use cautionGood conditions todaycamping-nearby

Cool water — ease in carefully

Use caution

Cool water — ease in carefully: water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry.

  • Water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry. NOAA buoy LPNM4, as of Aug 21, 10:30 PM UTC
Water temp
64°F
18°C

No official beach-advisory feed for Michigan yet — follow posted signs and local guidance.

Live data from NOAA buoy LPNM4 (9.8 mi away), as of Aug 21, 10:30 PM UTC.

Weather at Long Lake

H: 68° L: 62°
Overcast
Overcast
66°
|
Feels like 65°
Precipitation
67%
Humidity
72%
Wind
5 mph
UV Index
0
Water Conditions:
🏊Cool but swimmable
12 AM
Clear
63°
3 AM
Clear
62°
6 AM
Overcast
63°
9 AM
Cloudy
64°
12 PM
Overcast
66°
3 PM
Overcast
67°
6 PM
Overcast
67°
9 PM
Overcast
65°

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Frequently asked questions

Where is Long Lake?
Long Lake is a lake in Michigan.
What is the water temperature at Long Lake?
As of August 21, 2026, the water temperature at Long Lake in Michigan is 64°F (18°C), measured by NOAA buoy LPNM4, 9.8 miles away.
Can you swim at Long Lake?
Cool water — ease in carefully: water temperature is 64°F, cool enough to cause cold-water shock on a sudden entry. Checked August 21, 2026.
How is Long Lake rated?
Long Lake in Michigan has an average visitor rating of 4.7 out of 5, based on 69 reviews.
What amenities does Long Lake have?
Visitor-listed amenities at Long Lake include camping-nearby.

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Best Times to Visit

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🏞️ 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

Michigan

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Amenities

Camping nearby