Parts of the midlands will be impacted.
A Status Yellow rain warning comes into effect in parts of the midlands today.
Laois and Offaly will be among those impacted, as well as Carlow, Dublin, Kildare, Kilkenny, Wicklow and Munster.
It comes into effect from 6pm this evening, and will remain in place for 24 hours.
Met Éireann says persistent and sometimes heavy rainfall may cause localised flooding, poor visibility and difficult travelling conditions.
A Status Orange rain warning has been issued for Cork, which will also take place from 6pm today until 6pm tomorrow.
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