Met Éireann has issued a Status Yellow rain warning for eight counties.
According to the weather service, the warning covers counties Cavan, Longford and Westmeath, as well as all of Connacht including Sligo, Roscommon, Galway, Leitrim and Mayo.
Heavy or prolonged showers can be expected, as well as possible localised flooding, difficult driving conditions and poor visbility.
The warning is valid from this morning (Sunday October 29) at 10.55am until 9pm this evening.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.