National Forecast
Issued at: 17 June 2026 12:00
TODAY - Wednesday 17th June
Generally dry today with a mix of cloud and sunny spells with just a few passing showers, these mainly over western and northern counties. Cloud will thicken from the Atlantic later with patchy rain and drizzle developing in southern and western coastal areas later this evening. Highest temperatures of 16 to 21 degrees with moderate southwest winds.
TONIGHT
Cloud and outbreaks of rain in the south and southwest will extend northwards to most parts tonight, though some parts of Ulster may remain dry until morning. The rain will be heavy in places overnight, especially in the South, with the odd thundery downpour possible. Lowest temperatures of 10 to 13 degrees in light to moderate southerly winds.
TOMORROW - Thursday 18th June
A wet start on Thursday with widespread rain to begin. The rain will become patchier and more intermittent during the day and a few limited bright spells may develop. Highest temperatures of 16 to 21 degrees in moderate south to southwest winds.
National Outlook
Overview: More uncertainty than usual in the outlook but generally rather changeable and turning wet and unsettled at times.
Thursday night: Mostly cloudy with further outbreaks of rain and drizzle spreading northwards on Thursday night, again heaviest in parts of Munster. A mild and humid night with lowest temperatures of 12 to 15 degrees. Light to moderate southerly winds increasing moderate to occasionally fresh overnight.
Friday: Another wet start with outbreaks of rain in all areas at first on Friday. Brighter, drier and more showery conditions will develop in the west through the morning and gradually extend eastwards as the day goes on, though rain may persist for much of the day in eastern coastal counties. Mostly moderate southerly winds will veer light southwesterly as the rain clears. Highest temperatures of 16 to 20 degrees.
Friday night: Becoming drier Friday night as any remaining scattered outbreaks of rain will become lighter and some clear spells develop. Lowest temperatures of 9 to 12 degrees in light westerly winds.
Saturday: While there is some uncertainty in the exact details, current indications suggest Saturday will bring a drier day with sunny spells and just the chance of an odd light shower. Highest temperatures of 15 to 19 degrees in light southerly or variable winds.
Sunday: Currently Sunday looks like it could see a dry start for most before rain pushes up from the south mainly affecting the western half of the country with brighter and drier conditions further east. Highest temperatures of 17 to 21 degrees in light southeasterly winds.
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.