Hazard Report Provided By forecast.weather.gov
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 303 AM CDT Thu Jul 2 2026 ILZ103>105-021815- /O.CON.KLOT.XH.W.0001.000000T0000Z-260703T0500Z/ Northern Cook-Central Cook-Southern Cook- Including the cities of Chicago, Orland Park, La Grange, Lemont, Evanston, Oak Park, Calumet City, Schaumburg, Oak Forest, Des Plaines, Cicero, Palatine, Oak Lawn, Park Forest, and Northbrook 303 AM CDT Thu Jul 2 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... * WHAT...Dangerously hot conditions with peak heat index values of 100 to 105 degrees. * WHERE...Central Cook, Northern Cook, and Southern Cook Counties. * WHEN...Until midnight CDT tonight. * IMPACTS...Heat related illnesses increase during heat waves. 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. && $$ Kluber
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
317 AM CDT Thu Jul 2 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-030830-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
317 AM CDT Thu Jul 2 2026 /417 AM EDT Thu Jul 2 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Elevated Excessive Heat Risk.
Limited Thunderstorm Risk tonight...with an associated:
Level 2 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to a quarter in size.
Limited Flooding Risk tonight.
DISCUSSION...
Heat and humidity will continue with peak afternoon heat indices
between 100 and 105 degrees.
A loosely organized cluster of showers and thunderstorms are
possible this evening and through the overnight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Friday...
Limited Flooding Risk.
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk north of I-80.
Elevated Excessive Heat Risk south of I-80.
Saturday...
Limited Flooding Risk.
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Sunday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed is not anticipated tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at 40 mph.
$$
Hazard Report Provided By forecast.weather.gov