Hazard Report Provided By forecast.weather.gov
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
302 PM CDT Wed Jul 8 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-092015-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
302 PM CDT Wed Jul 8 2026 /402 PM EDT Wed Jul 8 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk late tonight.
DISCUSSION...
A weakening line of thunderstorms may drift into portions of
northwest Illinois and areas near the Wisconsin state line
after midnight tonight.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
Elevated Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Friday and Saturday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
DISCUSSION...
Scattered thunderstorms are expected at times Thursday through
early Friday morning. Any storms that develop will be capable of
heavy rainfall which may lead to flooding. The strongest storms
will be capable of locally damaging wind gusts, mainly south of a
Pontiac to Rensselaer line. Thunderstorm coverage will decrease
and focus mainly south of I-80 Friday and Saturday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at around 25 mph.
$$
Hazard Report Provided By forecast.weather.gov