Excessive Heat — St. Clair, Illinois

2011-07-10 to 2011-07-12 · St. Clair, Illinois

Wider weather episode

A short but intense Heat Wave hit Southwest Illinois from July 10 - 12. High temperatures were in the upper 90s to around 100 with the Heat Index from 110 - 115. Belleville had a high Heat Index of 121 on July 12. There were two deaths reported. One in Madison County and the other in St. Clair County.

Source: NOAA Storm Events Database, event_id 372700. Narrative written by the NWS forecast office that issued the report.