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Photo: Fall Color at Mayfield Lake- Gifford Pinchot (23823081962) by U.S. Forest Service- Pacific Northwest Region (Public domain) License

Mayfield Lake Park

Park · Mossyrock, Washington

Rainy todaycamping-nearbyBarbecue grillPicnic tablesPublic restroom
Editor's Notes
Run by Tacoma Power on the shore of Mayfield Lake — the 13-mile, 2,250-acre reservoir that Mayfield Dam created on the Cowlitz River in 1963 — this Lewis County park has a swimming area, boat launch, playground and volleyball court.

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Weather at Mayfield Lake Park

H: 81° L: 57°
Patchy rain nearby
Patchy rain nearby
64°
|
Feels like 65°
Precipitation
30%
Humidity
85%
Wind
4 mph
UV Index
1.8
Water Conditions:
🥶Too cold for most swimmers🌧️Rain expected
12 AM
Partly Cloudy
61°
3 AM
Overcast
61°
6 AM
Patchy rain nearby
61°
9 AM
Patchy rain nearby
61°
12 PM
Patchy rain nearby
67°
3 PM
Patchy rain nearby
78°
6 PM
Patchy rain nearby
78°
9 PM
Clear
59°

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Frequently asked questions

Where is Mayfield Lake Park?
Mayfield Lake Park is a park in Mossyrock, Washington.
Can you swim at Mayfield Lake Park?
There is no fixed answer for Mayfield Lake Park: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Mayfield Lake Park in Mossyrock, Washington. Check current water conditions before you go, and follow posted signs and local guidance.
How is Mayfield Lake Park rated?
Mayfield Lake Park in Mossyrock, Washington has an average visitor rating of 4.5 out of 5, based on 859 reviews.
What amenities does Mayfield Lake Park have?
Visitor-listed amenities at Mayfield Lake Park include camping-nearby.

Visitor Reviews

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Best Times to Visit

🌧️
Right Now
Not ideal for outdoor activities today
General Tips:
  • Weekday mornings (8–10 AM) are typically less crowded
  • Check the forecast 2–3 days ahead for best planning
  • Avoid holiday weekends for a quieter experience
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

180 Beach Rd, Mossyrock, WA 98564

Mossyrock, Washington 98564

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Highlights

Picnics

Accessibility

Wheelchair accessible entranceWheelchair accessible parking lot

Amenities

Camping nearby🍖 Barbecue grill🧺 Picnic tables🚻 Public restroom🏪 Slides🏪 Swings🏐 Volleyball court

Family & Children

👶 Good for kids👶 Good for kids birthday👶 Kid-friendly hikes👶 Playground