A yellow warning for ice has been issued across Northern Ireland for Sunday night and Monday morning, with temperatures widely expected to fall close to freezing.
The Met Office alert, which lasts from 19:00 GMT until 09:00 on Monday, warns that icy patches may form on untreated roads, pavements and cycle paths.
It also mentions a risk of potential freezing fog patches.
The highest risk for ice will be in western counties where temperatures are expected to fall several degrees below zero.