Met Éireann has forecast freezing temperatures this week with thundery showers and hail possible tonight and on Wednesday.
Today will see rain will develop in the West early in the afternoon, moving east through the rest of the day.
Highest temperatures will reach 9 to 11 degrees today with moderate to fresh and gusty southerly winds.
Tonight will be wet and breezy before the rain clears eastwards overnight, followed by clear spells and scattered showers – some heavy and hail is possible.
It will become colder too overnight with minimum temperatures of -1 to +3 degrees, and frost and ice are possible.
Met Éireann says that tomorrow, Wednesday, will be cold with sunshine and scattered blustery showers across the West.
Some of the showers will be heavy, with hail and thunder possible, and some may turn wintry over hills.
Afternoon temperatures of 5 to 9 degrees are forecast, but it will feel colder due to brisk north-westerly winds.
Showers will become isolated early on Wednesday night, leaving mostly dry and clear conditions.
It will be another cold night with frost and possibly ice, as temperatures drop to between -1 and +3 degrees.
The outlook for the rest of the week is similar, with nighttime temperatures hovering around freezing.