Australian Government Bureau of Meteorology South Australia Frost Warning for Mid North and Riverland forecast districts Issued at 04:07 PM CST on Saturday 18 July 2026 ================================================================================ Please be aware Temperatures at ground level can be many degrees lower than those recorded by standard weather stations, especially in calm conditions with clear skies. ================================================================================ Frost Warning for the following areas: Mid North and Riverland forecast districts Frosts with temperatures down to -1 degrees are forecast for Sunday morning in parts of the Mid North and Riverland forecast districts. No further warnings will be issued for this event.