
Key Takeaways
- Explore trails that offer stunning fall foliage while holding up against light rain.
- Pack appropriate gear to stay dry and comfortable during September hikes.
- Know the distance, mud ratings, and waterfall payoffs of each trail for planning.
- Be aware of parking fees and seasonal conditions to maximize your hiking experience.
- Consider the best times to visit for peak fall colors and fewer crowds.
With over 5 years of weekend hiking in the Pacific Northwest, we have pinpointed the best trails that remain accessible even in September rain. This guide focuses on trails that not only feature breathtaking autumn colors but also offer reliable footing and waterfall views, enhancing the hiking experience. With mud ratings and trail specifications, hikers will be prepared for the unique challenges of fall hiking in this beautiful region.
1. Rattlesnake Ledge
Located near Snoqualmie, Washington, Rattlesnake Ledge is a 4-mile round trip hike with an elevation gain of 1,160 feet. This trail has a moderate difficulty level and holds up well in light rain, with a mud rating of 3 out of 5. The trail leads to stunning views of Rattlesnake Lake, which reflects vibrant fall colors, and offers a remarkable waterfall payoff, especially after rainfall. The trailhead can be found at the end of Rattlesnake Lake Road, where parking is free; however, arrive early as the lot fills quickly, often by 9 AM on weekends. In September, enjoy cooler temperatures averaging around 60°F, ideal for hiking. The trail is well-marked, making navigation easy, and it features a few benches along the way for breaks. Note that the trail can be slippery after rain, so proper footwear is essential. A popular stop for many is the viewpoint at mile 1.5, where you can enjoy a break while absorbing the picturesque scenery.
2. Multnomah Falls Trail
Multnomah Falls in Oregon is a must-see, especially in the fall. This 2.6-mile trail provides a spectacular view of the tallest waterfall in the state at 620 feet, making it an iconic location for photography. The trail is paved and wheelchair accessible up to the lower falls, making it a great option for families. For those who seek a challenge, the upper falls viewpoint requires an additional 0.2 miles of steep hiking, gaining about 100 feet in elevation. The trail can be muddy, rated 4 out of 5 in wet conditions, so rain gear is essential. A parking fee is required, and the fall foliage typically peaks in mid-September, making it a perfect time to visit. The visitor center, which provides restrooms and a gift shop, is open from 9 AM to 6 PM, offering a chance to warm up or grab a snack. Keep in mind that this area can get crowded, so plan your visit on weekdays for a more serene experience. Early morning visits also allow for catching the sunrise illuminating the falls, showcasing their beauty even more.
3. Silver Falls State Park
Silver Falls State Park features a 7.2-mile loop known as the Trail of Ten Falls, which showcases several stunning waterfalls along the hike. Located in Oregon, this trail has a moderate difficulty rating with an elevation gain of about 1,200 feet. In rainy conditions, the trail can be muddy, rated 4 out of 5, but the waterfalls are breathtaking, especially in September. The park is open year-round, making it a reliable option for fall hiking. The Trail of Ten Falls includes a unique experience of walking behind some of the waterfalls, providing a different perspective and a chance to feel the mist on your face. Arrive early to avoid large crowds, especially on weekends when the park sees increased visitors. The best time to see the vibrant fall colors is typically from mid to late September; however, check the park’s website for current conditions. Notable waterfalls along the trail include South Falls and North Falls, both of which have viewing platforms for optimal photography opportunities.


4. Dog Mountain Trail
Located in Washington, the Dog Mountain Trail offers a 6-mile round trip that rewards hikers with panoramic views of the Columbia River Gorge. The trail is well-marked and can be slippery in rainy weather, rated 3 out of 5 for mud. The vibrant autumn colors are particularly stunning in September, with the leaves typically peaking around mid-month. There is no parking fee, but arrive early to secure a spot, as the small parking area fills up quickly on weekends. Be prepared for cooler temperatures averaging 55°F, and pack accordingly. A unique feature of this trail is its dog-friendly policy, making it a popular choice among pet owners. Keep in mind that the trail is steep in sections, with an elevation gain of approximately 2,800 feet, so be ready for a workout. The best time for wildflower blooms is in the spring, but the fall colors provide a different, equally stunning experience. Bring plenty of water and snacks, as there are no facilities along the trail.
Comparison Summary
| Trail Name | Distance | Mud Rating | Waterfall Payoff | Fee |
|---|---|---|---|---|
| Rattlesnake Ledge | 4 mi | 3/5 | Yes | Free |
| Multnomah Falls | 2.6 mi | 4/5 | Yes | check the official site for current fees |
| Silver Falls State Park | 7.2 mi | 4/5 | Yes | check the official site for current fees |
| Dog Mountain | 6 mi | 3/5 | No | Free |
Remember to dress in layers and bring waterproof gear to stay comfortable during your hike.
Best pick if you want stunning waterfall views: Silver Falls State Park offers the most impressive waterfall experiences, even in light rain. For those looking for shorter hikes with incredible scenery, Multnomah Falls is a perfect choice, while Dog Mountain provides an excellent challenge for dog owners and seasoned hikers alike.

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