20-degree temp drop with frost, freeze possible as ‘true fall-like' conditions move in

Chicago Forecast 20-degree temp drop with frost, freeze possible as ‘true fall-like' conditions move in The forecast comes after multiple days of 70-degree temperatures, and one of the Chicago-area's warmest Octobers on record. By NBC Chicago Staff • Published November 5, 2026 • Updated on November 5, 2026 at 7:24 am The first bout of "true late fall-like temperatures" this season moves into the Chicago area starting Thursday, with a 20-degree temperature drop and the chance of frost or a freeze by this weekend. The forecast comes after multiple days of temperatures in the 70s, and one of the Chicago-area's warmest Octobers on record. Stream NBC 5 for free, 24/7, wherever you are. WATCH HERE Early Thursday morning, temperatures were already in the 40s, NBC 5 Storm Team meteorologist Iisha Scott said. Temperatures will rise into the 50s, but wind gusts up to 30 mph throughout the day could make things feel even chillier. "When temperatures start cooling down, you factor in that wind, it's going to start feeling cooler," Scott said. Scattered showers were also possible Thursday afternoon and evening, Scott said, though not everyone will see rain. Overnight, lake-effect rain showers will develop in northwest Indiana. Friday will be a colder day, Scott said, with highs in the upper 40s, but lows in the upper 30s. "It's going to get even colder as we head into this upcoming weekend," Scott said, with overnight lows staying in the 30s. Weather Chicago Forecast 10 hours ago Cooler temps, rainy conditions expected Chicago Weather 24 hours ago Thursday morning weather Friday night into Saturday morning, frost is possible, along with freezing temperatures inland, the National Weather Service said. Freezing temps likely inland of Lake MI Fri night into early Sat, but mild wx returning Sun-Mon. Otherwise, on & off showers & drizzle this AM followed by sct'd showers this aftn & eve. Lake effect rain showers expected into parts of NW #INwx later tonight-Fri eve. #ILwx (2/2) — NWS Chicago (@NWSChicago) November 5, 2026 Mild weather returns next week, with temperatures rebounding into the 50s and 60s starting Sunday. According to the Climate Prediction Center, mid-November is expected to be warmer than average for this time of year. CPC CPC This article tagged under: Chicago Forecast