A status yellow rainfall warning remains in place for 16 counties this morning until midday.
It affects all of Connacht as well as Longford, Offaly, Westmeath, Cavan, Monaghan, Clare, Cork, Kerry, Limerick and Tipperary.
Up to 35 millimetres of rain is expected to fall leading to some spot flooding in places.
Heavy rain will turn to snow this morning and will lead to poor driving conditions in County Donegal, where a snow-ice warning is in place.
Tonight, there will be showers of rain, hail and sleet as well as some of snow especially in parts of Ulster, Connacht and Munster but with limited accumulations.
Temperatures will dip to between -1 and 3°C.
St Patrick's Day looks set to be cold with scattered showers but there will be some bright spells.
The showers will become more widespread in the afternoon with a few turning heavy in parts of Connacht and Munster.
