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Chester Morse Lake - Photo 1

Chester Morse Lake

Reservoir

Good conditions today

lake in King County, Washington, USA

Interactive map not available

Current water conditions

Water temp
56°F
13°C
Cold water — serious cold-shock risk today. At this temperature, sudden immersion can trigger involuntary gasping and sap a strong swimmer's strength within minutes. Enter slowly, never alone, and consider a wetsuit — or sit this one out.

Live data from NOAA buoy TCNW1 (34.7 mi away), as of Aug 21, 7:00 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 Chester Morse Lake

H: 89° L: 63°
Clear
Clear
69°
|
Feels like 66°
Precipitation
8%
Humidity
52%
Wind
5 mph
UV Index
0
Water Conditions:
🏊Cool but swimmable
12 AM
Clear
69°
3 AM
Clear
66°
6 AM
Overcast
63°
9 AM
Overcast
74°
12 PM
Overcast
77°
3 PM
Overcast
83°
6 PM
Overcast
79°
9 PM
Overcast
73°

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Frequently asked questions

Where is Chester Morse Lake?
Chester Morse Lake is a reservoir in Washington.
What is the water temperature at Chester Morse Lake?
As of August 21, 2026, the water temperature at Chester Morse Lake in Washington is 56°F (13°C), measured by NOAA buoy TCNW1, 34.7 miles away.
Can you swim at Chester Morse Lake?
There is no fixed answer for Chester Morse Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Chester Morse Lake in Washington. Check current water conditions before you go, and follow posted signs and local guidance.

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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

Washington

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