Exhibit 99.906 CERT

I, William G. Papesh, principal executive officer of the WM Trust II (the
"Funds"), certify that:

1. The Form N-CSR of the Funds for the period ended October 31, 2006 fully
complies with the requirements of Section 13(a) or 15(d) of the Securities
Exchange Act of 1934; and

2. The information contained in the Form N-CSR of the Funds for the period ended
October 31, 2006 fairly presents, in all material respects, the financial
condition and results of operations of the Funds.

By:      /s/ William G. Papesh
         -------------------------------------
         William G. Papesh
         President and Chief Executive Officer
         Principal Executive Officer
Date:    January 5, 2007



I, Jeffrey L. Lunzer, principal financial officer of the WM Trust II (the
"Funds"), certify that:

1. The Form N-CSR of the Funds for the period ended October 31, 2006 fully
complies with the requirements of Section 13(a) or 15(d) of the Securities
Exchange Act of 1934; and

2. The information contained in the Form N-CSR of the Funds for the period ended
October 31, 2006 fairly presents, in all material respects, the financial
condition and results of operations of the Funds.

By:      /s/ Jeffrey L. Lunzer
         -------------------------------------
         Jeffrey L. Lunzer
         Treasurer and Chief Financial Officer
         Principal Financial Officer
Date:    January 5, 2007