Park

Mercer Slough Nature Park park

Washington, USA Puget Sound watershed 47.575°, -122.182°
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Nearby campgrounds
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Mercer Slough Nature Park -- Washington park
Mercer Slough Nature Park Washington · Puget Sound watershed
About this park

Mercer Slough Nature Park

Mercer Slough Nature Park is a 320-acre park located in Bellevue, Washington. It offers an abundance of natural beauty and wildlife, making it a popular destination for nature lovers and outdoor enthusiasts. The park contains a variety of habitats, including wetlands, forests, and meadows, and is home to more than 170 species of birds, as well as beavers, otters, and other wildlife.

There are several good reasons to visit Mercer Slough Nature Park. It offers a peaceful escape from the hustle and bustle of the city, with miles of trails for hiking, biking, and wildlife viewing. The park also offers educational programs and guided nature walks to help visitors learn more about the area's flora and fauna.

One of the park's main points of interest is the Mercer Slough Environmental Education Center, which features interactive exhibits and educational displays on the area's ecology and conservation efforts. The center is also a great starting point for exploring the park's trails and natural areas.

Other notable points of interest in the park include the Blueberry Farm, a historic farmstead that has been restored and converted into a community garden, and the Mercer Slough Blueberry Festival, an annual event that celebrates the park's rich agricultural heritage.

Interesting facts about Mercer Slough Nature Park include the fact that it is one of the last remaining wetland areas in the Lake Washington watershed, and that it has been designated a National Urban Wildlife Refuge by the U.S. Fish and Wildlife Service. The park is also home to a variety of rare and endangered plant species.

The best time of year to visit Mercer Slough Nature Park is during the spring and summer months, when the park's trails are at their most vibrant and colorful. Visitors can enjoy blooming wildflowers and the sounds of migrating birds, as well as the park's many recreational activities and events.
StateWashington
WatershedPuget Sound
Latitude47.5752°
Longitude-122.1818°
Land designation

Park & land designation reference

A quick legend for the federal and state land categories Snoflo tracks. Each designation comes with different rules around access, recreation, and resource extraction.

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing, often around reservoirs, rivers, or scenic landscapes); may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use -- recreation, grazing, mining, conservation -- with fewer restrictions than national parks or forests.
Detailed forecast

Plan your visit down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Stay nearby

Area campgrounds

Snoflo-tracked campgrounds within reach of Mercer Slough Nature Park, with reservations status.

Campground Reservations Toilets View
Tolt-Macdonald Park Campground
Tolt Macdonald Park
Site 27
Site 36
Site 37
Site 40
Around the spot

Plan a longer trip

The closest parks, lakes, fishing spots, and POIs so a park visit can grow into a full weekend.

Responsible recreation & Leave No Trace

Know before you go
Check the operator's site for hours, permit requirements, seasonal closures, and fire restrictions before heading out.
Stay on trail
Stick to marked paths to protect vegetation, prevent erosion, and avoid disturbing wildlife habitat.
Respect wildlife
Observe from a distance, never feed wildlife, and store food securely if camping is permitted on-site.
Pack it in, pack it out
Carry out all trash, food scraps, and gear. Many parks have limited or no trash service.
Leave what you find
Don't take rocks, plants, or artifacts. They make the park what it is for the next visitor.

Set push alerts in the Snoflo app

Save Mercer Slough Nature Park as a favorite, set a custom threshold (precipitation, freezing temperatures, fire-restriction days), and the iOS app will push the moment conditions cross.

FAQ

About Mercer Slough Nature Park

What can I do at Mercer Slough Nature Park?

Most Snoflo-tracked parks support hiking, picnicking, and wildlife viewing. Check the operator's site for activity-specific rules (camping, fishing, paddling, hunting).

How fresh is the weather data?

The hourly forecast updates throughout the day from NOAA / yr.no. Streamflow comes live from USGS streamgauges.

When is the best time to visit?

Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation.

How do I get to Mercer Slough Nature Park?

Tap Directions in the hero above to open driving directions in Google Maps, or Open in map to center the Snoflo interactive map on the park.

Can I get alerts when conditions change?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this park, set a threshold (temperature, precipitation), and you'll get a push the moment it crosses.

More parks

Other parks near here

Snoflo-tracked parks within driving distance of Mercer Slough Nature Park.