Great Smoky Mountains National Park weather in June
June in Great Smoky Mountains National Park: warm, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Great Smoky Mountains National Park · #225 of 604 destinations to visit in June · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Great Smoky Mountains National Park climate normals — June
| Daytime high | 23°C / 74°F | 🌤 warm |
|---|---|---|
| Nighttime low | 14°C / 58°F | |
| Feels like (high) | 25°C / 77°F | |
| Rainfall | 121 mm / 4.8 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 13°C / 56°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 14.5 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 50 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Great Smoky Mountains National Park?
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Great Smoky Mountains National Park in June — FAQ
- Is June a good time to visit Great Smoky Mountains National Park?
- June in Great Smoky Mountains National Park: warm, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Great Smoky Mountains National Park on SeasonMap's comfort score (85/100).
- What is the weather like in Great Smoky Mountains National Park in June?
- In June, Great Smoky Mountains National Park averages a daily high of 23.3°C and a low of 14.2°C, with about 121.3 mm of rain over roughly 17.2 rainy days.
- What is the air quality in Great Smoky Mountains National Park in June?
- Great Smoky Mountains National Park has a mean US Air Quality Index of about 50 in June.