June 4
- 1877 – An F4 tornado devastated Mount Carmel, Illinois, killing at least 16 people and injuring 100. A total of 20 businesses and 100 homes were destroyed; some were swept away.
- 1958 – A major tornado outbreak hit the Upper Midwest. Three violent tornadoes from a single supercell killed 28 people in northwestern Wisconsin. The first of these, a fast-moving F5 tornado, struck the north side of Menomonie and devastated parts of Colfax, killing 21 people and injuring 110. After Colfax tornado dissipated, an F4 tornado struck Chippewa Falls, killing three people and injuring 56. Yet another F4 tornado, the last member of the tornado family, killed four more people south of Boyd and passed south of Stanley and Owen.