Information supplied by Met Éireann
Early mist, fog and grass frost clearing. Cool today, bright in many places with some sunny spells and scattered heavy rain or hail showers, mainly in southern, eastern and northeastern areas.
There will be isolated thunderstorms on parts of the east coast.
Cloudy in the southwest with rain developing over Cork and Kerry this morning, turning heavy and extending to the rest of Munster later today.
Highest temperatures of 11 to 14 degrees Celsius and becoming breezy in a freshening southeast to east breeze.
Scattered showers in Ulster overnight, but rain developing elsewhere and turning persistent and heavy in places, but probably clearing from southwestern counties towards dawn and winds falling off light there.
Lowest temperatures of 7 to 10 degrees Celsius in many areas but falling to 4 or 5 in the southwest in the clearance.
There is a status yellow rainfall warning for Cork and Kerry.
A spell of heavy rain is expected to develop on Friday over south Munster.
It will continue overnight, before clearing northwards during Saturday morning.
Some 25 to 40 mm of rain are expected, with the highest values expected over Kerry and west Cork.