National Forecast
Issued at: 17 May 2026 19:10
TODAY - Sunday 17th May
Cloudy this evening with widespread heavy showers or longer spells of rain, bringing the chance of hail and localised flooding. Moderate westerly winds.
TONIGHT
Tonight will become dry for most with clear spells and isolated showers. Staying cloudier in the southwest with outbreaks of rain and drizzle. Lowest temperatures of 1 to 5 degrees, milder in the southwest, with patches of mist and fog forming in light westerly or variable winds.
TOMORROW - Monday 18th May
A dry and bright start for most tomorrow, with patches of mist and fog in places. Cloud and rain in the southwest will gradually spread northeastwards through the morning and afternoon with the rain turning heavy at times, though Ulster and north Leinster will stay dry for much of the day. Highest temperatures of 11 to 15 degrees in moderate south to southeast winds.
National Outlook
Overview: Continuing unsettled with rain or showers but gradually becoming milder in a southwesterly airflow.
Monday night: Wet with widespread outbreaks of rain gradually clearing northeastwards. Scattered showers will follow from the southwest, turning heavy at times. Milder than previous nights with temperatures not falling below 8 to 11 degrees in a light to moderate southerly breeze.
Tuesday: Cloudy for most with widespread showers turning heavy and persistent at times. Breezy too with a moderate, occasionally fresh, southwest wind, and highest temperatures of 11 to 15 degrees.
Tuesday night: Continuing cloudy for most with showery outbreaks of rain. Lowest temperatures of 8 to 11 degrees in light to moderate southwesterly breezes.
Wednesday: A mix of sunny spells and scattered light showers at first. Turning cloudier from the southwest through the day as showers ease. Highest temperatures of 13 to 17 degrees in moderate, occasionally fresh southwesterly winds.
Thursday: A dull day for most with scattered outbreaks of rain and drizzle. Some mist and hill fog forming too. Highest temperatures of 14 to 18 or 19 degrees in mostly moderate southerly winds.
Further outlook: There is uncertainty in the details but further rain and showers are likely on Friday.
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.