Partly to mostly sunny, hot and humid on Monday. Highs in the upper 80s to low 90s. The hottest conditions will be in Central Wisconsin, where heat index values of 95° to 105° are possible in the afternoon to early evening. Parts of the area have a Heat Advisory on Monday.

An extreme heat warning is in effect for much of southern and central Minnesota and parts of western Wisconsin from noon until 9 p.m.