It comes into effect on Wednesday morning.
A Status Yellow wind warning has been issued for the midlands.
The region, as well as the rest of Leinster, Munster and the North, will be under the notice from 7am on Wednesday until midnight.
Met Éireann is warning of the possibility of difficult travelling conditions, power outages and some fallen tress.
A weather system due to hit Ireland on Wednesday could be called Storm Agnes.
Alan O'Reilly from Carlow Weather says it can be quite changeable: