Our branch lobbies are open 10:00 a.m. to 4:00 p.m. and by appointment. Our drive-ups remain open during regular business hours; Mobile/Online Banking and telebanking are also available for your financial needs. For location information and hours, please visit https://www.firstinterstatebank.com/locations/
Spearfish First Interstate Bank
Opens At 10:00 AM Opens At 10:00 AM Opens At 10:00 AM Opens At 10:00 AM Opens At 10:00 AMClosed Today Closed Today
Branch Hours
Day of the Week | Hours |
---|---|
Mon | 10:00 AM - 4:00 PM |
Tue | 10:00 AM - 4:00 PM |
Wed | 10:00 AM - 4:00 PM |
Thu | 10:00 AM - 4:00 PM |
Fri | 10:00 AM - 4:00 PM |
Sat | Closed |
Sun | Closed |
Drive-Up Hours
Day of the Week | Hours |
---|---|
Mon | 8:00 AM - 5:30 PM |
Tue | 8:00 AM - 5:30 PM |
Wed | 8:00 AM - 5:30 PM |
Thu | 8:00 AM - 5:30 PM |
Fri | 8:00 AM - 5:30 PM |
Sat | 9:00 AM - 12:00 PM |
Sun | Closed |

Featured Products at First Interstate Bank
Home Loans
Whether you’re buying your first home or improving the one you live in, it’s important to choose a loan that suits your needs. Navigating how to choose that loan can be daunting. The Home Loans experts at First Interstate Bank will help make the process easy and understandable from start to finish.Payments
As a business, the way you’re paying your vendors may be costing you more than you realize. The Payments experts at First Interstate Bank will work with your business to put safe, efficient, easy to use purchasing tools in place that can assist with controlling expenses and cash flow.Commercial Loans
Commercial loans can be available for almost any business purpose, including starting a business, operating or expanding a business, or running a large corporation. First Interstate Bank will help you through the commercial loan process to make sure that you get the right loan for your business needs.Personal Loans
From home loans, auto loans and recreational (RV and boat) loans to debt consolidation, home equity loans, and personal lines of credit, First Interstate Bank offers a wide variety of personal loans to suit your financing needs.
Featured Products at First Interstate Bank
Mobile Banking
With First Interstate’s mobile app, you can check your account and loan balances, keep track of expenses, transfer money between accounts, schedule one-time or recurring payments through Bill Pay, pay people instantly with Popmoney, and more. Bank wherever life takes you—all from the palm of your hand.Credit Cards
Credit cards can be great tools for bringing convenience, value, and financial security to your everyday. First Interstate’s FirstRewards® World Mastercard® offers real-time fraud text alerts, Mastercard Zero Liability, and reward points which can be redeemed for travel or gift cards to your favorite local businesses to, amongst other great features.Merchant Services
Merchant Services is a convenient, cost-effective, and secure payment processing solution allowing your business to accept credit and debit cards. Whether you need payment solutions for in-person or online transactions, integrated terminals, or gift cards, First Interstate can help with a single-source solution for all your payment transactions.Online Bill Pay
Make all your payments to companies and individuals in one, convenient place. Guarantee on-time payments, track transactions, set payment alerts, and reduce your financial paper trail by eliminating paper checks and even paper statements when you sign up for Bill Pay through First Interstate’s Online Banking.
About First Interstate Bank
First Interstate Bank in offers a comprehensive suite of personal and business products to take care of all of your diverse financial needs. From the utility of a checking account, to a credit card's possibilities, to even bigger life moments of mortgages and business loans - and everything in between our local banking experts at First Interstate Bank are here for you.
First Interstate is a community bank headquartered in Billings, Montana. With more than 150 offices across Idaho, Montana, Oregon, South Dakota, Washington, and Wyoming, we’re dedicated to helping these diverse communities reach their greatest potential—answering the needs of residents and businesses with practical financial solutions while supporting communities through business development and philanthropy.
First Interstate is a community bank headquartered in Billings, Montana. With more than 150 offices across Idaho, Montana, Oregon, South Dakota, Washington, and Wyoming, we’re dedicated to helping these diverse communities reach their greatest potential—answering the needs of residents and businesses with practical financial solutions while supporting communities through business development and philanthropy.

Bank anywhere life takes you.
First Interstate's mobile app allows you to bank anywhere life takes you. All of your online basics are covered in the palm of your hand. Check balances, view transaction history, transfer funds, deposit checks, pay bills, set push notifications, pay people with POP money, and more. Download it from your preferred app store today.