A Status Yellow rain warning has been issued for six counties along the west coast.
Met Éireann said that significant accumulations from heavy showers and longer spells of rain can be expected in Clare, Donegal, Galway, Leitrim, Mayo and Sligo.
Isolated thunderstorms are possible.
The forecaster said the potential impacts are localised flooding, poor visibility and difficult travelling conditions.
The warning will be in place for 24 hours from 6pm this evening.
⚠️Yellow rainfall warning issued for Clare, Donegal, Galway, Leitrim Mayo & Sligo.⚠️
Valid: 18:00 today, Wed 27th Aug to 18:00 Thu 28th Aug
Significant rainfall accumulations from heavy showers & longer spells of rain. Isolated thunderstorms possible.
ℹ️https://t.co/w5QtJ1UyEP pic.twitter.com/2OKtdklCJo
— Met Éireann (@MetEireann) August 27, 2025