Boise weather in June
June in Boise: warm, dry, with clean air — one of the best months to visit.
#1 of 12 months in Boise · #14 of 604 destinations to visit in June · comfort 94/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Boise climate normals — June
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 14°C / 57°F | |
| Feels like (high) | 27°C / 81°F | |
| Rainfall | 19 mm / 0.8 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 50% | 🍃 comfortable |
| Dew point | 7°C / 45°F | |
| Sunshine | 13.2 h/day | |
| Daylight | 15.4 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 41 | 🍃 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 June — FAQ
- Is June a good time to visit Boise?
- June in Boise: warm, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Boise on SeasonMap's comfort score (94/100).
- What is the weather like in Boise in June?
- In June, Boise averages a daily high of 28.3°C and a low of 13.7°C, with about 19.3 mm of rain over roughly 4.4 rainy days.
- What is the air quality in Boise in June?
- Boise has a mean US Air Quality Index of about 41 in June.