Ulster
Issued at: 23 September 2026 05:30
TODAY - Wednesday 23rd September
Any lingering rain and cloud in the east will clear early this morning to leave a mostly dry and bright day with sunny spells and isolated showers. Highest temperatures of 14 to 16 degrees in a light northwesterly or variable breeze.
TONIGHT
Tonight will be dry with clear spells at first. It will turn cloudier overnight with patchy light rain and drizzle developing near western coasts by morning. Lowest temperatures of 7 to 10 degrees in a light to moderate southerly breeze.
Pollen Forecast
Low on Wednesday and Thursday.
Solar UV Index
Low on Wednesday. Low to moderate on Thursday.
TOMORROW - Thursday 24th September
A dull and breezy day tomorrow, though with some sunny spells in the east during the morning. Dry for most at first with patchy light rain and drizzle near west coasts. More persistent outbreaks of rain will spread from the west through the afternoon and evening. Highest temperatures of 15 to 18 degrees in moderate to fresh southerly winds.
National Outlook
Overview: A brighter day on Friday but it will become more unsettled this weekend with rain and breezy conditions at times. Daytime temperatures will be in the mid to high teens.
Thursday night: Cloudy at first with rain and drizzle spreading eastwards. Rain will clear from most areas overnight, though patches of light rain and drizzle will linger in parts of the south and east until morning. Southwesterly winds will ease light to moderate. Lowest temperatures of 9 to 13 degrees.
Friday: Lingering drizzle in the east and south will clear early on Friday to leave a brighter day with a mix of sunny spells and scattered showers. Highest temperatures of 14 to 17 degrees in moderate southwest winds.
Friday night: A dry night for many with clear spells, though scattered showers will continue in Atlantic coastal counties. Lowest temperatures of 10 to 14 degrees in moderate southwest winds, fresher on northwest coasts.
Saturday: Plenty of dry and bright weather to start with sunny spells and scattered showers. However, more persistent rain will develop in the west and north through the day with more frequent showers developing elsewhere. Breezy with moderate to fresh south to southwest winds. Highest temperatures of 15 to 19 degrees.
Sunday: Generally cloudy on Sunday with widespread rain, possibly turning heavy in some places. Highest temperatures of 13 to 17 degrees with moderate to fresh southerly winds easing light to moderate westerly through the day.
Further outlook: Low pressure will remain dominant next week. It will remain unsettled with wet and blustery conditions at times. Daytime temperatures will generally be in the mid-teens.
Temperature circle (°C): maximum and minimum temperature forecast for each day. Wind symbol (km/h): arrow points in the direction the wind is blowing. The weather and wind icons: for the time of maximum temperature and minimum temperature.