July 19-20, 2019: Heat Episode, Including Rockford Tying All-Time Record High Minimum Temperature

Overview

Fast Facts:

Northern Illinois and northwest Indiana were at the northern end of a dome of heat, with highs on July 19-20 reaching into the mid 90s in most communities.
High moisture also moved into the area with dew points reaching 75° to 80°, which combined with the temperatures brought heat index values well over 100° during the two afternoons.
The humid air kept temperatures from dropping much at all at night, especially in the urban areas.
Rockford tied an all-time record for a daily minimum temperature, with a low only of 80° on July 19.

Maximum Heat Indices and Temperatures During the Hot Stretch

Rockford Record

All-Time Record High Minimum Temperature Tied at Rockford, IL

Observation History at Rockford, IL

Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.

Additional recaps can be found on the NWS Chicago Past Events Page