August weather forecast and climate
Oregon, USA

Flag of Oregon, USA
Flag of Oregon, USA

Weather in August

August is a hot summer month in Oregon with sunny days and clear skies. The arid lands in the central and eastern parts experience vast temperature differences of 35°F (1.7°C) to 40°F (4.4°C) between day and night. Willamette Valley has mild temperatures that often remain below 80°F (26.7°C). The average high temperatures statewide are in the warm to hot 65°F (18.3°C) to 92°F (33.3°C) range with an average of 23 sunny days.
Humidity is high in the coastal areas, particularly in the morning, when it reaches 80% and above. August nights are perfect for camping and stargazing with negligible rain and clear skies. Light summer clothing works well, but long pants are better while traversing forested areas. August provides excellent conditions for hiking the panoramic trails and mystic waterfalls such as those near the Columbia River Gorge. Wildflowers bloom in the natural habitats and rivers roar with abundant freshwater. Watch out for wildfires in the dry forest areas during August in Oregon.
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