Snow Across the Great Lakes, Central Appalachians, and Northeast; Unsettled Weather in the West

Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. 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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Snow Across the Great Lakes, Central Appalachians, and Northeast; Unsettled Weather in the West

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