This morning will be mainly dry across Ulster with sunny spells and just a few showers.
This afternoon, however, heavy showers will spread eastwards with a possibility of isolated thunderstorms and localised flooding.
Breezy within moderate to fresh south to southwest winds and highest temperatures of 10 to 12 degrees.
Some showers early tonight.
More persistent rain will spread northeastwards across the region overnight.
Lowest temperatures of 7 to 9 degrees with moderate to fresh southerly winds.