Bozeman weather in August
August in Bozeman: warm, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Bozeman · #107 of 604 destinations to visit in August · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Bozeman climate normals — August
| Daytime high | 28°C / 82°F | 🌤 warm |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 26°C / 79°F | |
| Rainfall | 48 mm / 1.9 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 55% | 🍃 comfortable |
| Dew point | 9°C / 49°F | |
| Sunshine | 12 h/day | |
| Daylight | 14.1 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Bozeman in August — FAQ
- Is August a good time to visit Bozeman?
- August in Bozeman: warm, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Bozeman on SeasonMap's comfort score (88/100).
- What is the weather like in Bozeman in August?
- In August, Bozeman averages a daily high of 27.6°C and a low of 12.1°C, with about 48 mm of rain over roughly 7.8 rainy days.
- What is the air quality in Bozeman in August?
- Bozeman has a mean US Air Quality Index of about 41 in August.