National Forecast
Issued at: 29 August 2026 16:30
TODAY - Saturday 29th August
Damp or wet for a time across Ulster and Leinster with scattered rain and drizzle, heavy in places with the chance of localised flooding. While drier conditions will extend from the west, some scattered heavy showers will follow too.
TONIGHT
Lingering showery rain will affect parts of Ulster and Leinster early tonight, but otherwise it will be dry under broken cloud. Scattered outbreaks of rain will gradually move into Connacht and Munster overnight, turning heavy or thundery in places. Some mist and fog patches across the country too, in mostly light southerly breezes. Lowest temperatures of 9 to 14 degrees, coolest for Ulster and Leinster.
TOMORROW - Sunday 30th August
Generally dry early Sunday morning across north and northeast counties. However, showers or longer spells of rain will become fairly widespread by late morning. These will be very heavy at times with thunderstorms and localised flooding possible. Some intense downpours may fall in a short space of time with some sunny spells also. Highest temperatures of 16 to 21 degrees, with mostly light to moderate variable breezes, gusty at times around heavy showers.
National Outlook
Overview: Unsettled into next week with showers or more persistent spells of rain forecast for each day. Becoming breezy at times too.
Sunday night: Becoming breezy with a mix of clear spells and scattered showers. Lowest temperatures of 10 to 14 degrees, with moderate to fresh, west to northwest winds.
Monday: Starting off breezy with a mix of sunny spells and scattered showers. Cloud will thicken from the west through the afternoon and evening with outbreaks of rain and drizzle following. Highest temperatures of 15 to 18 degrees, coolest in the northwest, with a moderate to fresh westerly breeze.
Monday night: Starting off cloudy with patchy outbreaks of rain and drizzle mainly affecting western Atlantic coastal counties. Some clear spells will develop as the night progresses. Lowest temperatures of 10 to 14 degrees, with a light to moderate southwesterly breeze.
Tuesday: Sunny spells and scattered showers. Highest temperatures of 15 to 20 degrees, coolest in the north and warmest in the south, with a light to moderate westerly breeze.
Wednesday: A breezy day with cloud and rain clearing eastwards early, leaving a mix of sunny spells and scattered showers. Warmer than previous days with highest temperatures of 18 to 22 degrees, with fresh southwesterly 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.