Boise weather in April
April in Boise: cool, a little rain, with clean air — an excellent time to visit.
#6 of 12 months in Boise · #227 of 604 destinations to visit in April · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Boise climate normals — April
| Daytime high | 17°C / 63°F | 🙂 cool |
|---|---|---|
| Nighttime low | 4°C / 39°F | |
| Feels like (high) | 14°C / 57°F | |
| Rainfall | 30 mm / 1.2 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 53% | 🍃 comfortable |
| Dew point | -2°C / 29°F | |
| Sunshine | 10.9 h/day | |
| Daylight | 13.4 h | |
| Wind | 22 km/h / 13 mph | |
| Snowfall | 1.4 cm / 0.6 in | |
| Air quality (US AQI) | 42 | 🍃 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 April — FAQ
- Is April a good time to visit Boise?
- April in Boise: cool, a little rain, with clean air — an excellent time to visit. It ranks #6 of 12 months for Boise on SeasonMap's comfort score (82/100).
- What is the weather like in Boise in April?
- In April, Boise averages a daily high of 17°C and a low of 3.7°C, with about 30.3 mm of rain over roughly 6.8 rainy days.
- What is the air quality in Boise in April?
- Boise has a mean US Air Quality Index of about 42 in April.
- Does it snow in Boise in April?
- Boise sees roughly 1.4 cm of snowfall in April.