A Status Yellow low temperature and ice warning has been issued by Met Éireann for 19 counties, including Cavan, Donegal, and Monaghan, effective from 8 PM until 11 AM the next day. Minimum temperatures are expected to drop to -3°C or lower, leading to sharp to severe frost and icy conditions. While tomorrow will be dry, conditions will remain cold with maximum temperatures ranging between 1°C and 6°C and persistent mist and fog in some areas.