Mainly dry and clear on Monday night apart from coastal showers in the west and northwest.
The warning states that wintry showers of hail, sleet and snow with localised accumulations, especially on high ground, are to be expected.
"Some showers also coming in and meeting that cold air".More news: Aussie victim of Epstein sex scandal claims she is in danger
Tomorrow will be another cold day, with showers developing in the South and West during the day becoming more widespread in the evening with some hail, sleet and snow especially for high ground, and the ongoing risk of thunder.
Weather experts at the Met Office say snow could fall on Saturday, when temperatures are set to fall in the wake of today's heavy rain. The showers will be most frequent over the southern half of the country. A widespread frost with minimum temperatures of -3 to +1 degrees, is also forecast. Highest temperatures of 3 to 6 degrees in fresh to strong southwest winds.
Winds will be mostly moderate southerly, but fresh to strong on the south coast.More news: Samsung denies selling 1 mln Galaxy Fold smartphones
There will be a frosty start to Sunday with icy patches which could lead to another day of widespread showers that may turn wintry at times. Temperatures will rise no higher 6 degrees though winds will be mostly moderate.
The Met Office added that the temperature could drop to -2, but will feel more mile minus 4.
Monday is likely to be more settled after a cold dry start. Mean speeds 50 to 65 km/h gusting to 90 to 110 km/h with a risk of stronger winds at the coasts.More news: Messi the best of his time, not all time - Ronaldinho
Met Eireann is advising that driving conditions may be hazardous.