Ulster
Issued at: 11 May 2026 16:30
TODAY - Monday 11th May
Staying mostly dry this evening with some sunny spells, but cloud will gradually increase in the west of the province, in moderate northwesterly winds.
TONIGHT
It will be rather cloudy tonight with patchy light rain and drizzle developing. The rain and drizzle will clear to the southeast towards dawn. Lowest temperatures of 5 to 9 degrees in light or moderate west to northwesterly winds.
Pollen Forecast
High on Tuesday and Wednesday.
Solar UV Index
Moderate on Tuesday and Wednesday.
TOMORROW - Tuesday 12th May
Any lingering rain and drizzle will quickly clear tomorrow morning, and the rest of the day will see a mix of sunny spells and showers. The showers will be isolated in the afternoon, but will become more frequent during the evening. A breezy day, with moderate to fresh and gusty west to northwesterly winds, becoming strong at times later along the west coast. Highest temperatures of 11 to 15 degrees.
National Outlook
Overview: Becoming more unsettled. Continuing cool for mid-May
Wednesday night: Scattered showers will ease early in the night, becoming mostly confined to the north and northwest with just isolated showers possible elsewhere. Cloud will build from the west through the night. Lowest temperatures of 4 to 9 degrees in mostly moderate northwest winds.
On Thursday, rain will develop i the west and north-west early in the morning and spread southeastwards to all areas by noon. Outbreaks of rain and drizzle will continue for the rest of the day, becoming light and patchy on Thrusday night. A cool day with highest temperatures of 9 to 13 degrees and light to moderate west or northwest winds.
Friday will be a bit milder with bright or sunny spells and well scattered showers. Highest temperatures of 12 to 16 degrees in light to moderate northwesterly breezes.
Saturday will start off dry. Rain and drizzle will develop in the west and spread eastwards, clearing on Saturday night. Highest temperatures of 11 to 14 degrees with light to moderate south to south-west winds.
Sunday will be cool with sunny spells and scattered showers. highest temperatures of 11 to 14 degrees with mostly light west to southwest winds.
The weekend will continue mixed with a fair amount of dry weather, but with some rain or showers at times too. Temperatures will range from about 12 to 15 degrees with light to moderate southerly or westerly breezes.
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.