There are three weather warnings in place for the weekend with gale-force winds, heavy rain and snow showers forecast.
A Status Yellow rainfall warning has been issued by Met Éireann for Connacht, Cavan, Monaghan and Donegal.
Met Éireann said up to 25-35mm of rainfall is expected this evening.
The warning is in place until midnight tonight.
Sligo County Council has reported spot flooding in Sligo town.
Areas affected include Carraroe, Strandhill and Knockbeg near Collooney.
A number of cars were abandoned after they stalled in floodwaters at Knockbeg and the road is impassable.
AA Roadwatch has also reported some spot flooding in Galway, Monaghan, Cavan and Leitrim.
A Status Orange marine warning is in place with gales or strong gales, southwesterly veering northwesterly, expected this evening on coasts from Carlingford Lough to Roche's Point to Erris Head and for the Irish Sea.
Westerly winds will reach storm force 10 for a time on the north Irish Sea this evening.
A Status Yellow snow-ice warning is in place for the whole country from midnight tonight until midnight tomorrow night.
Met Éireann said accumulations of up to 3cm of snow are possible, with larger amounts on higher ground, especially in Ulster and Connacht.
Temperatures will drop tonight to as low as -2C.
Daytime temperatures tomorrow will only reach between 1-4C with a wind chill effect from a gusty west to northwest wind.