October in Salem averages a daily high of 18°C with nights around 6.6°C. Expect roughly 13.2 wet days totalling 85.4mm. Generally workable, with some weather to plan around.
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 October data.