Updated
Jupiter Lakes
Lake
a group of lakes in Jefferson County, Washington, United States
Interactive map not available
Current water conditions
Live data from NOAA buoy PTWW1 (30.5 mi away), as of Aug 20, 10:30 PM 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 Jupiter Lakes









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Frequently asked questions
- Where is Jupiter Lakes?
- Jupiter Lakes is a lake in Washington.
- What is the water temperature at Jupiter Lakes?
- As of August 20, 2026, the water temperature at Jupiter Lakes in Washington is 55°F (13°C), measured by NOAA buoy PTWW1, 30.5 miles away.
- Can you swim at Jupiter Lakes?
- There is no fixed answer for Jupiter Lakes: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Jupiter Lakes in Washington. Check current water conditions before you go, and follow posted signs and local guidance.
Visitor Reviews
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Best Times to Visit
- ›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
Location & Contact
Washington
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