National Forecast
Issued at: 18 June 2026 21:15
TONIGHT
Cloudy and wet tonight as rain becomes widespread. The rain will be heavy at times and may cause spot flooding, especially in the south. There'll be mist and fog also. Mild and humid with temperatures falling no lower than 11 to 16 degrees, in a light to moderate southerly breeze.
TOMORROW - Friday 19th June
Tomorrow morning will start cloudy and wet with mist and fog, but the rain will become lighter and patchy as the morning goes on. During the afternoon some sunny spells will develop but there will be showers too, most of these in the north and west. Highest temperatures of 15 to 21 degrees, warmest in the east and south, with light to moderate southerly winds turning westerly.
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.