What is the weather like in North Cascades National Park vs Portland in August?

In August, North Cascades National Park averages 15°C high / 4°C low with about 32 mm of rain; Portland averages 28°C high / 16°C low with about 8 mm.

North Cascades National Park vs Portland in August

North Cascades National Park is the better pick in August — 93 vs 89 on SeasonMap's comfort score. North Cascades National Park is cool, a little rain, clean air, while Portland is warm, dry, clean air.

North Cascades National Park vs Portland — August climate, side by side

	🇺🇸 North Cascades National Park	🇺🇸 Portland
Comfort score	93/100 (S)	89/100 (A)
Feels-like high	13°C	28°C
Avg high / low	15° / 4°	28° / 16°
Rainfall	32 mm	8 mm
Rainy days	7	1
Humidity	67%	57%
Air quality (AQI)	44	34

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

North Cascades National Park vs Portland in August — FAQ

Is August better in North Cascades National Park or Portland?: North Cascades National Park is the better pick in August — 93 vs 89 on SeasonMap's comfort score. North Cascades National Park is cool, a little rain, clean air, while Portland is warm, dry, clean air.
What is the weather like in North Cascades National Park vs Portland in August?: In August, North Cascades National Park averages 15°C high / 4°C low with about 32 mm of rain; Portland averages 28°C high / 16°C low with about 8 mm.