Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
119 PM CDT Tue Aug 4 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-051830-
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-
119 PM CDT Tue Aug 4 2026 /219 PM EDT Tue Aug 4 2026/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

  Limited Thunderstorm Risk.
  Limited Flooding Risk.

DISCUSSION...

A few non severe storms may impact northwestern Illinois this evening
and overnight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
  Elevated  Thunderstorm Risk...with an associated:
     Level 1 of 5 Severe Thunderstorm Risk.
     Elevated Flooding Risk.
Thursday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.
Saturday and Sunday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.

DISCUSSION...

Clusters of thunderstorms are possible Wednesday into Thursday.
These storms may result in locally heavy rainfall and localized
flooding.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the east northeast at 30 to 35 mph.

$$

Hazard Report Provided By forecast.weather.gov