Chicago, Illinois – Dangerous heat and stormy skies will grip Illinois on Saturday, with parts of the state feeling like 100°F and scattered thunderstorms bringing potential travel disruptions, especially in the northwest.
According to the National Weather Service in Chicago, peak heat indices will climb into the upper 90s and low 100s during the afternoon, particularly across northwestern counties. Scattered showers and storms could develop by evening, some bringing heavy downpours and gusty winds. Storm coverage will be most widespread north and west of I-39.
Cities including Rockford, Freeport, and DeKalb should prepare for possible delays and power outages if storms intensify. In the Chicago metro, heat will dominate during the day before storms roll in overnight. Residents are urged to stay hydrated, limit outdoor activity, and check on vulnerable neighbors.
Relief begins Sunday as highs drop into the 80s, with continued chances for isolated thunderstorms. Monday and Tuesday will feel noticeably cooler and less humid, especially along the Lake Michigan shoreline.
More updates will be issued as storm threats evolve. Alerts remain in place through Saturday night.
🌤 Illinois Five-Day Weather Snapshot:
- Saturday: High 90–95°F | Heat index near 100°F | Storms PM, mostly in NW IL
- Sunday: High 82–87°F | Scattered showers/storms | Cooler overnight
- Monday: High 81–85°F | Partly cloudy | Less humid
- Tuesday: High 86–90°F | Mostly sunny | Low humidity
- Wednesday (Outlook): High near 90°F | Dry and warm conditions likely
