Humidity will begin to quickly drop once a backdoor cold front slides through central Indiana.
Dew point temperatures were in the middle 50°s Saturday morning. They are forecast to drop in to the 40°s by late afternoon and evening.
Interesting to note that the HRRR (computer model) takes the dew point down to 31° in Indianapolis tonight. That would shatter the record low dew point for the date since 1942; 36° in 2012.
The record low dew point for the month of June is 24°. Two dates dropped that low. June 2, 1994 and June 22, 1974.