Chicago experienced its hottest day of the year so far, with temperatures reaching 70 degrees Fahrenheit on Saturday, March 21, 2026. This unseasonably warm weather marks a significant departure from typical March temperatures in the region. According to CBS News Chicago, the city enjoyed sunny skies and mild conditions, providing residents with a pleasant day to spend outdoors. The warm weather is part of a broader trend affecting the Midwest, with similar conditions reported in surrounding areas. This temperature spike is notable as it sets a new record for 2026, offering a brief respite from the cooler temperatures generally expected at this time of year.