Australian Government Bureau of Meteorology South Australia Road Weather Alert for Adelaide Issued at 06:39 AM CDT on Tuesday 20 October 2026 Road weather alert for reduced visibility in fog for the following areas: Adelaide Reduced visibility in fog and low cloud will make road conditions dangerous during Tuesday morning in the Adelaide Hills Area. The SA Police advises that people should: Slow down and take extra care. Maintain a safe distance between you and the vehicle in front. Turn on your headlights. For information on any road closures, please contact your local council or the Police. The next alert will be issued by 11:00 am CDT Tuesday.