Heat in Cherokee, Iowa

Heat index values peaked as high as 104 degrees at Cleghorn, 103 degrees at Cherokee and 6 miles south of Marcus, and 100 degrees 2 miles east of Marcus.

High levels of moisture pooled along and ahead of an outflow boundary across eastern South Dakota and southwest Minnesota with dew point readings into the the upper 70s to lower 80s. With temperatures in the upper 80s to lower 90s, heat index values generally reached the 100 to 110 degree range during the mid afternoon to early evening.