Great Western Bank ← View details 610 West McLane Street, Osceola, IA 50213 +1 641-342-4140 greatwesternbank.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 04:00 pm Tuesday: 09:00 am — 04:00 pm Wednesday: 09:00 am — 04:00 pm Thursday: 09:00 am — 04:00 pm Friday: 09:00 am — 04:00 pm Saturday: 09:00 am — 12:00 pm Your comments * — Required information