Leinster
Issued at: 18 June 2026 17:30
TODAY - Thursday 18th June
Scattered heavy showers over the north of Leinster this evening, drier further south, in light to moderate southwest winds.
TONIGHT
Tonight will be cloudy with rain moving northwards, heavy at times, especially in the south. A mild and humid night with lowest temperatures of 14 or 15 degrees and light to moderate southerly winds.
Pollen Forecast
High today, high or very high on Friday
Solar UV Index
Mostly low or moderate today, but high in any sunshine. Moderate at first on Friday, increasing high in sunshine
TOMORROW - Friday 19th June
Friday morning will be wet with rain in all areas. Through the afternoon, the rain will become patchy and gradually clear eastwards with heavy showers following from the west. Highest temperatures of 18 to 20 degrees with light to moderate southwest winds.
National Outlook
Overview: Plenty of dry weather for the weekend, followed by showers at times next week. Becoming warmer.
Friday night: A mix of clear spells and scattered showers at first, but becoming largely dry by morning. Winds will be light and variable and patches of mist and fog will form. Cooler and fresher than recent nights with lowest temperatures of 7 to 11 degrees.
Saturday: Apart from isolated showers in the northwest on Saturday morning, it'll be a dry day with spells of sunshine. Highest temperatures of 15 to 22 degrees, warmest in the east, with light to moderate westerly or variable winds.
Saturday night: Dry with long clear spells. Patches of mist and fog will form overnight. Lowest temperatures of 6 to 11 degrees with light and variable winds.
Sunday: Mist and fog will clear on Sunday morning and it'll be a dry day with sunny spells. Highest temperatures of 17 to 23 degrees, coolest along eastern coasts due to a light easterly breeze.
Sunday night: A few light showers possible near northern coasts but otherwise dry with long clear spells. Mild with lowest temperatures of 11 to 14 degrees in a light easterly or variable breeze.
Monday: Warm with a mix of cloud and sunny spells. Heavy showers will move in from the south, mainly affecting Leinster and Munster but possibly extending further to the north. Thunderstorms are possible too. Highest temperatures of 20 to 25 degrees in a light southerly or variable breeze.
Monday night: The heavy showers will clear eastwards early on Monday night, giving way to largely dry conditions, although a few light showers are possible in the north and west. Mild with temperatures not falling below 12 to 16 degrees, in light to moderate south to southwest winds.
Tuesday: Cloud will increase in most areas on Tuesday, with some patchy rain or drizzle possible in the northwest. Warmest and sunniest in the east and southeast with temperatures reaching 21 to 25 degrees. Less warm across the rest of the country with top temperatures of 15 to 20 degrees. Westerly winds will be moderate.
Further outlook: There is uncertainty at this range, but latest guidance suggests a warming trend with potential for showers pushing up from the south.
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.