North Cascades National Park Weather in August

August in North Cascades National Park typically sees daytime highs of 21°C (70°F) and nighttime lows of 10°C (50°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the summer season.

Rainfall in North Cascades National Park in August

On average, there are about 10 days with rain during this month, averaging 71 mm (2.8 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in North Cascades National Park in August

North Cascades National Park has excellent weather in August, with days reaching 21°C (70°F) and nights cooling to 10°C (50°F). During August, you'll experience the summer season. Conditions are often most pleasant around the middle of the day. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. On average, it sees the highest temps of the year.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for North Cascades National Park.