Mist and fog will clear away during the morning but patches may linger on coasts for a time.
Good sunny spells will develop through the morning for most with well scattered showers developing in the afternoon.
Highest temperatures of 11 to 15 degrees in light northeasterly or variable breezes.
Showers will ease for a time before picking up again later in the night, mainly in the north of the province.
Cloud will build from the north too during the night and mist and fog patches will develop in mostly light northerly or variable breezes.
Lowest temperatures of 1 to 5 degrees.
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.