Weather Alerts For Seward, IL

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT FROM NOON CDT /1 PM EDT/ MONDAY TO 10 PM CDT /11 PM EDT/ WEDNESDAY # DETAILS -------------------- WHAT Heat index values around 105 expected each afternoon WHERE Portions of central, east central, north central, and northeast Illinois and northwest Indiana. WHEN From noon CDT /1 PM EDT/ Monday to 10 PM CDT /11 PM EDT/ Wednesday. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Sunday, June 28, 2026 at 6:29 PM CDT ISSUED BY National Weather Service Chicago IL HEADER URGENT - WEATHER MESSAGE # 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. # AREAS AFFECTED -------------------- Lake IN, Livingston, Benton, Boone, De Kalb, Eastern Will, Ford, Grundy, Iroquois, Jasper, Kankakee, Kendall, La Salle, Lee, Newton, Northern Will, Ogle, Porter, Southern Will, Winnebago Including the cities of Watseka, Hammond, Dwight, Mendota, Morris, Paxton, Rensselaer, Sycamore, Mokena, Channahon, DeMotte, Minooka, Byron, Bradley, Bolingbrook, Oxford, Yorkville, Rochelle, Kentland, Peotone, Crete, Ottawa, La Salle, Fowler, Pontiac, Coal City, Roselawn, Beecher, Chesterton, Rockford, Gary, Portage, Bourbonnais, Merrillville, Dixon, Wilmington, Morocco, Manhattan, Belvidere, Valparaiso, DeKalb, Oswego, Marseilles, Kankakee, Fairbury, Oregon, Gilman, Joliet, Gibson City, Plainfield, Plano, and Streator

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 A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE NORTHERN PLAINS AND THE CAROLINAS SUMMARY Severe thunderstorms are expected mainly tonight across the Dakotas. Large to very large hail and severe winds are the primary hazards. Thunderstorms capable of scattered wind damage are possible in parts of the Carolinas. 20Z Update The SLGT risk in eastern IA was removed, given recent convective trends and displacement from the parent/weakening MCV. The MRGL risk in the wake of this activity was also trimmed in parts of the Midwest, where robust capping at the base of the EML will limit thunderstorm/severe potential. Farther west, the SLGT risk in the northern Plains was expanded slightly southwestward in southwest SD, where steepening midlevel lapse rates and around 60 kt of effective shear will promote large hail with intensifying elevated supercells overnight.