April in Marysville averages a daily high of 15.3°C with nights around 5°C. Expect roughly 16.5 wet days totalling 81mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Marysville is July–August.
Based on EVERETT, WA US (8.6km), 1995–2024. 27 years of April data.