Glacier National Park weather in October
October in Glacier National Park: cold, a little rain, with clean air — a good time to visit.
#7 of 12 months in Glacier National Park · #442 of 604 destinations to visit in October · comfort 67/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Glacier National Park climate normals — October
| Daytime high | 6°C / 42°F | 🧥 cold |
|---|---|---|
| Nighttime low | -2°C / 28°F | |
| Feels like (high) | 2°C / 36°F | |
| Rainfall | 68 mm / 2.7 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | -1°C / 30°F | |
| Sunshine | 7.8 h/day | |
| Daylight | 10.8 h | |
| Wind | 14 km/h / 9 mph | |
| Snowfall | 31.3 cm / 12.3 in | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Glacier National Park in October — FAQ
- Is October a good time to visit Glacier National Park?
- October in Glacier National Park: cold, a little rain, with clean air — a good time to visit. It ranks #7 of 12 months for Glacier National Park on SeasonMap's comfort score (67/100).
- What is the weather like in Glacier National Park in October?
- In October, Glacier National Park averages a daily high of 5.5°C and a low of -2.4°C, with about 67.7 mm of rain over roughly 10.4 rainy days.
- What is the air quality in Glacier National Park in October?
- Glacier National Park has a mean US Air Quality Index of about 35 in October.
- Does it snow in Glacier National Park in October?
- Glacier National Park sees roughly 31.3 cm of snowfall in October.