October in Plymouth averages a daily high of 14.5°C with nights around 4.3°C. Expect roughly 9.8 wet days totalling 74.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Plymouth is May–September.
Based on NEW HOPE, MN US (6km), 1995–2024. 30 years of October data.