🌤 Weather at Willamette Mission State Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 37–68 °F | 48–83 °F | 38–77 °F | 34–51 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Mcminnville Municipal Airport, 9 mi away, elevation 159 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
Willamette Mission State Park is a public state park in Oregon near Gervais. Spanning 1,680 acres and established in 1834, this park offers a peaceful retreat into nature for visitors of all ages.
Quick Facts
| State | Oregon |
| Nearest City | Gervais |
| Park Size | 1,680 acres |
| Established | 1834 |
| Google Rating | ⭐ 4.5/5 (600 reviews) |
Location & Getting There
Willamette Mission State Park is located near Gervais, Oregon. The park’s coordinates are 45.0753, -123.0500.
Explore More Oregon State Parks
Willamette Mission State Park is one of many outstanding state parks in Oregon. Discover more parks in our Best State Parks in Oregon guide, or use our Park Finder to search by activity, location, or features.
Wildlife & Nature
Willamette Mission State Park — site of the first Methodist mission in the Pacific Northwest (1834) — preserves 1,686 acres of Willamette River floodplain including the largest black cottonwood tree in the world (155 feet tall, 26 feet in circumference). The park’s Filbert Grove — 43 acres of historic hazelnut orchards — reflects Oregon’s status as the producer of 99% of all US hazelnuts. The Wheatland Ferry — one of Oregon’s three remaining cable ferries — crosses the Willamette at the park. The floodplain forest supports one of the Willamette Valley’s most important heron rookeries. Western pond turtles bask on logs in Mission Lake. Beaver maintain the wetland areas. The park’s location along the Pacific Flyway makes it excellent for waterfowl viewing.
Nearby Attractions
Salem — Oregon’s capital — features the Oregon State Capitol, Hallie Ford Museum of Art, and Bush’s Pasture Park. Willamette Heritage Center preserves the oldest buildings in Salem. Ankeny National Wildlife Refuge provides winter dusky Canada goose viewing. Eola-Amity Hills AVA offers world-class Pinot Noir tasting. Silver Falls State Park — Oregon’s largest — features the Trail of Ten Falls. Brooks has Antique Powerland Museum.
More parks nearby: Maud Williamson State Recreation Site is a short drive away, while State Capitol State Park lies a short drive away.
🐾 Dogs & Pets at Willamette Mission State Park
- Pets allowed? statewide rule
- Pets are welcome in Oregon state parks and on most ocean beaches but must be leashed except in designated off-leash areas.
- Leash rule statewide rule
- Leash no longer than 6 feet required in developed park areas
- Beaches & swim areas statewide rule
- Pets are allowed on most ocean beaches under direct control; western snowy plover nesting areas restrict pets March 15 - Sept. 15; leash required on the beach at some parks (e.g. Cape Lookout)
- Cabins & lodging statewide rule
- Designated pet-friendly yurts and cabins at many parks (South Beach has 14 pet-friendly yurts, Tugman 8); maximum two dogs and/or cats; $10 per night pet fee
- Pet fees statewide rule
- $10 per night for pet-friendly yurts/cabins; no pet fee for day use or campsites
- Statewide exceptions statewide rule
- Pets prohibited at Dabney SRA, the Trail of Ten Falls at Silver Falls, and Shore Acres; off-leash areas at Stub Stewart, Willamette Mission, Elijah Bristow, Cottonwood Canyon and LaPine
Are dogs allowed at Willamette Mission State Park?
Pets are welcome in Oregon state parks and on most ocean beaches but must be leashed except in designated off-leash areas. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via stateparks.oregon.gov. More: Oregon state parks guide · Dog rules in all 50 states compared
Park Location
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