Northern Ireland WeatherThis Evening and Tonight:Mainly cloudy with outbreaks of rain, some heavy at first in the west. The rain then light and patchy overnight with most places dry by the morning. Minimum Temperature 9 °C.Thursday:Bright for much of the day, with some sunshine at times and becoming warm, especially in the north. Some rain or showers will develop later. Moderate to fresh southerly winds. Maximum Temperature 17 °C.