Great Smoky Mountains National Park weather in October
October in Great Smoky Mountains National Park: nice, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Great Smoky Mountains National Park · #96 of 604 destinations to visit in October · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Great Smoky Mountains National Park climate normals — October
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 9°C / 47°F | |
| Feels like (high) | 17°C / 63°F | |
| Rainfall | 104 mm / 4.1 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 6°C / 42°F | |
| Sunshine | 8.2 h/day | |
| Daylight | 11.3 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Great Smoky Mountains National Park in October — FAQ
- Is October a good time to visit Great Smoky Mountains National Park?
- October in Great Smoky Mountains National Park: nice, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Great Smoky Mountains National Park on SeasonMap's comfort score (87/100).
- What is the weather like in Great Smoky Mountains National Park in October?
- In October, Great Smoky Mountains National Park averages a daily high of 18.2°C and a low of 8.5°C, with about 104 mm of rain over roughly 10.6 rainy days.
- What is the air quality in Great Smoky Mountains National Park in October?
- Great Smoky Mountains National Park has a mean US Air Quality Index of about 34 in October.