It was unclear whether Obama would visit Oak Creek or the temple while she's here, or whether she'll meet with Oak Creek police Lt. Brian Murphy, who was one of four people injured in the Aug. 5 shootings. Murphy remains hospitalized and is in satisfactory condition.
Obama also will attend a campaign event while in town.
Gunman Wade Michael Page opened fire during a Sunday service at the Sikh Temple of Wisconsin, killing six people before taking his own life.
Rajwant Singh, the chairman of the Sikh Council on Religion and Education, told Reuters it was critical that U.S. leaders reach out to the Sikh families in Wisconsin and to the Sikh community.
"A visit by the first lady will be reassuring and heartening and it will be a powerful symbol of President Obama embracing the Sikhs at this serious juncture," he said in an emailed statement to Reuters.
Barack Obama called Oak Creek Mayor Steve Scaffidi on the day of the shootings to offer his condolences to the city, but has not visited the city since the shootings.
In fact, the son of temple President Satwant Singh Kaleka, who was among those killed, publicly criticized the president for not doing more to support those affected by the tragedy.
"He’s never called the victim's families, not even the board that my father led before he died," the New York Observer quoted Amardeep Kaleka as saying.