August in Salem averages a daily high of 28.7°C with nights around 12.8°C. Expect roughly 3 wet days totalling 9.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Salem is June–September.
Based on SALEM AIRPORT MCNARY FIELD, OR US (5km), 1995–2024. 30 years of August data.