There is a heat advisory:
Heat Advisory
Severity: Moderate
Possible threat to life or property
Weather Event Onset
11:35 AM (EDT), July 29
Description
* WHAT...Heat index values up to 107.
* WHERE...Portions of central, east central, north central, and west central Indiana.
* WHEN...Until 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
I have met with people, like friends from the UK who were amazed at the heat once one steps out of the convention center. Friends in California have asked if the winters are bad here, and I have to say it's the summer, and they are like "the summer?"