Parts of the midlands will be affected.
Parts of the midlands will fall under a Status Yellow Low Temperature and Ice Warning this evening.
Offaly and Westmeath, as well as Longford and Connacht, will be impacted by the alert from 6pm, which will be in place until 10am tomorrow morning.
Met Éireann says it will be very cold, with frost and ice.
It's also warning of slippery underfoot and hazardous driving conditions, as well as animal welfare issues.