A status yellow rain warning has been issued for a number of counties, including Kerry.
Kerry, Clare, Cork, Limerick, Tipperary and Galway will be affected by the warning.
It comes into effect this evening at 6 o'clock and is expected to last for 24 hours.
A status orange rain warning for Kilkenny, Waterford and Wexford comes into effect at 4 o’clock tomorrow morning, also lasting for 24 hours.
At the same time, a status yellow rain warning will be in effect for Carlow, Kildare, Laois, Longford, Offaly, Westmeath, Wicklow and Roscommon.
Met Eireann says there's a possibility of localised flooding and difficult travelling conditions.