Mount Rainier National Park in October
In October, Mount Rainier National Park averages a high of 46°F and a low of 33°F, with 11.3 inches of precipitation (rain plus melted snow). About 133,000 people visit, the 5th busiest of 12 (moderate). Days are 10 hours 48 minutes long.
- Quiet
- Moderate
- Busy
- Very busy
- Few or no visits (may be closed)
- Best months
- High / low
- 46° / 33°F
- Precipitation
- 11.3in
- Snow
- –in
- Daylight
- 10h 48m
- Visitors
- 133,000
- Crowds
- Moderate
Best months for weather and crowds instead: July (very busy), August (very busy) and September (moderate).
Higher or lower in the park, expect a different picture: Longmire Rainier Nps, WA at 2,762 ft averages a October high of 55°F and a low of 35°F.
Weather 1991–2020 averages at Rainier Paradise RS, WA, 5.1 miles from the park's center, 5,427 ft. Second station lower down: Longmire Rainier Nps, WA, 2,762 ft, 8.8 miles. Visitors National Park Service recreation visits, average of 2023–2025. Updated .
Other parks in October
| Park | High / low °F | Crowds | Weather |
|---|---|---|---|
| Fort Vancouver National Historic Site | 64° / 45° | Moderate | Mild, wet |
| Olympic National Park | 56° / 42° | Busy | Mild, wet |
| Ross Lake National Recreation Area | 56° / 43° | Busy | Mild, wet |
| North Cascades National Park | 57° / 44° | Quiet | Mild, wet |
| Lake Roosevelt National Recreation Area | 57° / 31° | Moderate | Mild, wet |
Closures, reservations and alerts: Mount Rainier National Park on nps.gov
All twelve months at Mount Rainier · National parks to visit in October