Weather Alerts For Chicago Heights, IL

A Weather Alert has been issued for a nearby area. While your current location is outside of the impacted area, please stay alert and monitor weather conditions. # HEADLINE -------------------- A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR NORTHERN DUPAGE AND NORTHWESTERN COOK COUNTIES # SUMMARY -------------------- At 1000 PM CDT, a severe thunderstorm was located over Wood Dale, or over Elk Grove Village, moving east at 30 mph. # DETAILS -------------------- HAZARD 60 mph wind gusts. SOURCE Radar indicated. IMPACT Expect damage to roofs, siding, and trees. LOCATIONS IMPACTED INCLUDE Arlington Heights, Schaumburg, Des Plaines, Mount Prospect, Wheaton, Hoffman Estates, Glenview, Elmhurst, Lombard, Bartlett, Ohare Airport, Carol Stream, Hanover Park, Wheeling, Park Ridge, Addison, Glendale Heights, Elk Grove Village, Glen Ellyn, West Chicago, Melrose Park, Franklin Park, Rolling Meadows, Roselle, and Bloomingdale. ISSUED AT Thursday, July 2, 2026 at 10:00 PM CDT ISSUED BY National Weather Service Chicago/Romeoville HEADER Severe Weather Statement # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- For your protection move to an interior room on the lowest floor of a building. # AREAS AFFECTED -------------------- Cook IL, DuPage IL

# HEADLINE -------------------- EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT # DETAILS -------------------- WHAT Dangerously hot conditions with 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 significantly during extreme heat and high humidity events. ISSUED AT Thursday, July 2, 2026 at 1:48 PM CDT ISSUED BY National Weather Service Chicago IL HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. 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. Stay cool, stay hydrated, stay informed. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. # AREAS AFFECTED -------------------- Central Cook, Northern Cook, Southern Cook Including the cities of La Grange, Des Plaines, Northbrook, Lemont, Chicago, Park Forest, Schaumburg, Evanston, Cicero, Calumet City, Palatine, Oak Park, Oak Forest, Oak Lawn, and Orland Park

Closest strike: 24.94 miles Monitor Storms You are not at immediate risk, but frequently check WeatherBug to see if storms are moving towards you. Be aware that new storms can also form with little notice.

There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS FAR EASTERN SOUTH DAKOTA INTO FAR SOUTHWEST MINNESOTA AND EXTREME NORTHWEST IOWA THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF THE NORTHERN HIGH PLAINS TO THE GREAT LAKES AND WESTERN KANSAS SUMMARY Scattered severe storms are still possible from the northern Plains into the Midwest and Great Lakes regions this evening. More isolated severe storms will be possible across the Central High Plains. High Plains into the Midwest Several clusters of thunderstorms are ongoing across portions of the Dakotas into northern Iowa and southern Wisconsin/northern Illinois. Across the western Dakotas, clusters of multi-cell and supercells are ongoing. Given moderate instability and some supercellular modes, large hail to very large hail and damaging wind will continue to be a threat through the evening. Additional thunderstorms may move out of Montana and or southern Canada through the evening with additional chances for large hail and damaging wind. A cluster across southeastern South Dakota moving into Minnesota/Iowa has a history of producing significant gusts 90-100 mph. More recent observations have been around 60-70 mph. It is likely that the damaging wind potential will continue downstream for the next couple of hours, with potential for additional development along the trailing outflow into northern Nebraska later this evening. The 00z sounding from OAX sampled a large cape profile with steep low to mid-level lapse rates.Confidence in exact evolution remains low but some CAM guidance does suggest a secondary MCS structure may move eastward later this evening across northern Iowa. Given the large MLCAPE gradient extending across southern South Dakota into northern Iowa and a continued reservoir of steep low to mid-level lapse rates, this may pose additional potential for damaging wind through the evening. Central High Plains A few isolated supercells are ongoing across portions of eastern Colorado, southern Nebraska, and western Kansas. These have had occasional stronger MESH cores around 2 inches. The 00z sounding from DDC sampled strong instability and steep low to mid-level lapse rates amid large dew point depressions within the near surface profile. Given strong deep layer shear, inverted v soundings, and moderate to strong instability, these supercells will continue to pose a risk for large to very large hail and severe wind. Northeast A line of thunderstorms is sagging southward out of Quebec. These may pose some potential for a few instances of strong to severe wind through the evening. See MCD#1455 for more information.