North Cascades National Park weather in July
July in North Cascades National Park: cool, dry, with clean air — one of the best months to visit.
#2 of 12 months in North Cascades National Park · #62 of 604 destinations to visit in July · comfort 91/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
North Cascades National Park climate normals — July
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 3°C / 38°F | |
| Feels like (high) | 13°C / 55°F | |
| Rainfall | 26 mm / 1 in | ☀️ dry |
| Rainy days | 6 days | |
| Humidity | 67% | 💧 humid |
| Dew point | 3°C / 37°F | |
| Sunshine | 12.6 h/day | |
| Daylight | 15.7 h | |
| Wind | 9 km/h / 5 mph | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is North Cascades National Park?
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North Cascades National Park in July — FAQ
- Is July a good time to visit North Cascades National Park?
- July in North Cascades National Park: cool, dry, with clean air — one of the best months to visit. It ranks #2 of 12 months for North Cascades National Park on SeasonMap's comfort score (91/100).
- What is the weather like in North Cascades National Park in July?
- In July, North Cascades National Park averages a daily high of 14.9°C and a low of 3.4°C, with about 26.3 mm of rain over roughly 6.2 rainy days.
- What is the air quality in North Cascades National Park in July?
- North Cascades National Park has a mean US Air Quality Index of about 36 in July.