Hazard Report Provided By forecast.weather.gov
URGENT - WEATHER MESSAGE National Weather Service Chicago IL 309 PM CDT Wed Jul 1 2026 ILZ103>105-020615- /O.CON.KLOT.XH.W.0001.000000T0000Z-260703T0500Z/ Northern Cook-Central Cook-Southern Cook- Including the cities of Orland Park, Park Forest, Chicago, Palatine, Lemont, La Grange, Calumet City, Northbrook, Schaumburg, Oak Lawn, Des Plaines, Evanston, Oak Park, Oak Forest, and Cicero 309 PM 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 100 to 105 degrees expected. * WHERE...Central Cook, Northern Cook, and Southern Cook Counties. * WHEN...Until midnight CDT Thursday Night. * 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. && $$ Borchardt
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
958 PM CDT Wed Jul 1 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-030300-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
958 PM CDT Wed Jul 1 2026 /1058 PM EDT Wed Jul 1 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
DISCUSSION...
A few storms may graze far northwest and northern Illinois late
tonight and early Thursday morning. Locally gusty winds would be
the main threat.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
Elevated Thunderstorm Risk...with an associated:
Level 2 of 5 Severe Thunderstorm Risk.
Elevated Excessive Heat Risk.
Friday...
Limited Flooding Risk.
Significant Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Elevated Excessive Heat Risk.
Saturday...
Limited Flooding Risk.
Elevated Thunderstorm Risk.
Limited Excessive Heat Risk.
Sunday and Monday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated tonight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the northeast at 35 mph.
$$
Hazard Report Provided By forecast.weather.gov