The Best National Parks to Visit in October — Ranked by Data
The best national parks to visit in October are Badlands, Isle Royale, Wind Cave — ranked by a fixed formula over official NPS crowd data (2021–2025), NOAA weather normals and daylight, with seasonal closures counted against inaccessible parks.
Top 10 for October
| # | Park | Verdict | Score | Crowds vs peak | High/Low | Daylight |
|---|---|---|---|---|---|---|
| 1 | Badlands National Park | Best window | 81 | 27% | 63°F/34°F | 11.1h |
| 2 | Isle Royale National Park | Best window | 81 | 2% | 51°F/33°F | 10.9h |
| 3 | Wind Cave National Park | Best window | 81 | 25% | 61°F/34°F | 11.1h |
| 4 | Gateway Arch National Park | Best window | 80 | 26% | 69°F/46°F | 11.2h |
| 5 | Lassen Volcanic National Park | Best window | 78 | 35% | 59°F/33°F | 11.2h |
| 6 | North Cascades National Park | Best window | 78 | 19% | 56°F/38°F | 10.9h |
| 7 | Theodore Roosevelt National Park | Best window | 78 | 34% | 58°F/30°F | 11h |
| 8 | Glacier National Park | Best window | 76 | 18% | 49°F/32°F | 10.9h |
| 9 | Great Sand Dunes National Park | Best window | 76 | 41% | 60°F/33°F | 11.3h |
| 10 | Kings Canyon National Park | Best window | 76 | 43% | 59°F/31°F | 11.3h |
Score = 45% weather comfort (NOAA 1991–2020 normals) + 35% quietness (NPS visitation 2021–2025) + 20% daylight, with penalties where headline access is typically closed. Identical formula for every park. Methodology.
Think twice in October
At the other end of the ranking: Denali (headline access typically closed), Gates of the Arctic (harsh conditions). Every park's page explains exactly why, with the underlying numbers.
All 63 parks in October
Badlands (81)Isle Royale (81)Wind Cave (81)Gateway Arch (80)Lassen Volcanic (78)North Cascades (78)Theodore Roosevelt (78)Glacier (76)Great Sand Dunes (76)Kings Canyon (76)Voyageurs (76)Saguaro (75)Katmai (74)Sequoia (74)Big Bend (73)Mesa Verde (73)Carlsbad Caverns (72)Rocky Mountain (72)White Sands (72)Grand Teton (71)Indiana Dunes (71)Black Canyon of the Gunnison (69)Crater Lake (69)Guadalupe Mountains (69)Pinnacles (69)Great Basin (68)Hot Springs (68)Wrangell–St. Elias (68)Joshua Tree (67)Mammoth Cave (67)Bryce Canyon (66)Channel Islands (66)Petrified Forest (66)New River Gorge (65)Yellowstone (65)Redwood (64)Yosemite (64)Arches (63)Canyonlands (63)Capitol Reef (63)Congaree (62)Grand Canyon (62)Lake Clark (62)Zion (62)Everglades (61)Kenai Fjords (61)Virgin Islands (61)Cuyahoga Valley (60)Death Valley (59)Dry Tortugas (59)Haleakalā (59)Olympic (59)Gates of the Arctic (56)American Samoa (56)Acadia (55)Mount Rainier (54)Shenandoah (53)Biscayne (51)Glacier Bay (51)Hawaiʻi Volcanoes (49)Great Smoky Mountains (46)Denali (36)Kobuk Valley (30)
Last verified 2026-07-16