Mammoth Cave National Park weather in October
October in Mammoth Cave National Park: nice, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Mammoth Cave National Park · #101 of 604 destinations to visit in October · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Mammoth Cave National Park climate normals — October
| Daytime high | 21°C / 71°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 21°C / 70°F | |
| Rainfall | 101 mm / 4 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 59% | 🍃 comfortable |
| Dew point | 7°C / 44°F | |
| Sunshine | 7.9 h/day | |
| Daylight | 11.2 h | |
| Wind | 15 km/h / 9 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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Mammoth Cave National Park in October — FAQ
- Is October a good time to visit Mammoth Cave National Park?
- October in Mammoth Cave National Park: nice, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Mammoth Cave National Park on SeasonMap's comfort score (87/100).
- What is the weather like in Mammoth Cave National Park in October?
- In October, Mammoth Cave National Park averages a daily high of 21.4°C and a low of 12.1°C, with about 100.7 mm of rain over roughly 10.6 rainy days.
- What is the air quality in Mammoth Cave National Park in October?
- Mammoth Cave National Park has a mean US Air Quality Index of about 34 in October.