Thunderstorms and Heavy Rain Across the Southern and Eastern US; Heat and Fire Weather Concerns in the West

Showers and thunderstorms are expected across the southern and eastern US this week, with heavy rain and localized flooding, particularly near the Gulf Coast. Monsoonal moisture will bring rain and potential flooding to parts of the Southwest. Heat and fire weather threats will continue to impact the West. Read More >

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

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Thunderstorms and Heavy Rain Across the Southern and Eastern US; Heat and Fire Weather Concerns in the West

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