Chicago, IL — Chicagoans can expect a warm-up as the weekend approaches, with temperatures and humidity levels rising significantly. Today and Friday will see comfortable highs between 75-83°F, offering a pleasant close to the workweek. However, the weather takes a sharp turn by Saturday, with highs reaching between 82-87°F, and a 30-40% chance of scattered showers and storms by evening.
Sunday and Monday are set to bring the peak of this heatwave. Humidity will increase, pushing heat indices into the upper 90s to lower 100s. Sunday’s temperatures will range from 86-90°F, with Monday slightly hotter at 89-95°F. These conditions pose a heightened risk of heat-related illnesses, so residents are urged to stay hydrated and avoid prolonged outdoor activities.
Looking ahead, the heat will persist into Tuesday, with a high of 87°F, before slightly cooler air arrives by midweek. Highs on Wednesday and Thursday will range from 83-85°F. The chance for showers returns on Thursday, providing some relief from the ongoing heat.
