A status yellow rainfall warning has been issued for Donegal, Sligo and Leitrim.
The warning comes into effect tomorrow morning at 6am, and will remain valid for 24 hours.
Met Eireann Meteorologist Matthew Martin says the heavy rain may lead to some flooding:
Extreme weather events are expected to happen twice as often in Ireland because of climate change.
A new report by a group of scientists has found countries in north-western Europe will be worst hit by severe flooding.
Maynooth University was involved in the research – Professor John Sweeney is a climate expert there:
Meanwhile, with the possibility of increased flooding in the future, more homes may face insurance hikes or face the impossibility of getting insurance.
Paul Kavanagh, insurance broker and managing director of McCarthy Insurance Group, says action is needed for properties who cannot get flood cover in low lying areas: