Boise weather in July
July in Boise: hot, dry, with clean air — a great time to visit.
#7 of 12 months in Boise · #286 of 604 destinations to visit in July · comfort 79/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Boise climate normals — July
| Daytime high | 35°C / 95°F | 🥵 hot |
|---|---|---|
| Nighttime low | 19°C / 66°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 1 mm / 0 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 28% | 🌵 dry |
| Dew point | 6°C / 43°F | |
| Sunshine | 13.7 h/day | |
| Daylight | 15.1 h | |
| Wind | 17 km/h / 10 mph | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Boise?
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Boise in July — FAQ
- Is July a good time to visit Boise?
- July in Boise: hot, dry, with clean air — a great time to visit. It ranks #7 of 12 months for Boise on SeasonMap's comfort score (79/100).
- What is the weather like in Boise in July?
- In July, Boise averages a daily high of 34.8°C and a low of 19°C, with about 0.9 mm of rain over roughly 0.2 rainy days.
- What is the air quality in Boise in July?
- Boise has a mean US Air Quality Index of about 49 in July.