Hazard Report Provided By forecast.weather.gov

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
230 AM CDT Wed Jul 1 2026

ILZ103>105-011730-
/O.CON.KLOT.XH.W.0001.000000T0000Z-260703T0500Z/
Northern Cook-Central Cook-Southern Cook-
Including the cities of Northbrook, Oak Lawn, Calumet City,
Palatine, Schaumburg, Park Forest, Lemont, La Grange, Oak Park,
Oak Forest, Cicero, Evanston, Chicago, Des Plaines, and Orland
Park
230 AM CDT Wed Jul 1 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
THURSDAY NIGHT...

* WHAT...Dangerously hot conditions with peak afternoon heat index
  values of 102 to 107 degrees.

* WHERE...Cook County.

* WHEN...Until midnight CDT Thursday Night.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events.

* ADDITIONAL DETAILS...Stifling heat will continue even at night
  with heat indices remaining above 90 degrees until midnight or
  just after.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

The magnitude of anticipated heat, combined with oppressive warmth
at night will lead to hazardous conditions, particularly for the
elderly and those with pre-existing health conditions. Residents of
the city of Chicago can call 3 1 1 to request well being checks for
elderly friends or family members, or for information on finding the
nearest cooling center.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

- Izzi

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
329 AM CDT Wed Jul 1 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-020830-
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-
329 AM CDT Wed Jul 1 2026 /429 AM EDT Wed Jul 1 2026/

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

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Limited Thunderstorm Risk.
  Elevated Excessive Heat Risk.

DISCUSSION...

Heat and humidity will continue with peak afternoon heat indices
between 100 and 110 degrees.

There is a slight chance of thunderstorms after midnight tonight
near the Wisconsin border.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
  Elevated Thunderstorm Risk...with an associated:
     Level 1 of 5 Severe Thunderstorm Risk.
  Elevated Excessive Heat Risk.
Friday...
  Limited Flooding Risk.
  Significant Thunderstorm Risk...with an associated:
     Level 1 of 5 Severe Thunderstorm Risk.
  Elevated Excessive Heat Risk.
Saturday...
  Limited Flooding Risk.
  Elevated Thunderstorm Risk.
  Limited Excessive Heat Risk.
Sunday and Monday...
  Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$

Hazard Report Provided By forecast.weather.gov