A status yellow low temperature & ice warning has been issued for Connacht and 5 other counties from 6pm this evening.
Met Eireann is warning of a very cold night tonight, with temperatures dropping to between -2 and -5 degrees, possibly colder locally, with a widespread severe frost.
Icy patches may form on untreated surfaces.
The yellow warning comes into effect from 6 this evening until 10am tomorrow morning, with Met Eireann warning that the freezing temperatures will persist well into tomorrow.