National Forecast
Issued at: 29 August 2026 11:00
TODAY - Saturday 29th August
A wet start this afternoon for many with rain, drizzle and some mist. The rain will be very heavy and persistent at times with the chance of localised flooding. Drier conditions in the west will gradually extend eastwards through the day, though the rain may linger in parts of Leinster and Ulster until evening. Following the clearance, there will be some sunny spells, but also some scattered showers, possibly heavy or thundery. Highest temperatures of 15 to 20 degrees, with light to moderate north to northwest winds backing westerly.
TONIGHT
Starting off mostly dry tonight with a mix of cloud and clear spells and just isolated showers. However, as the night progresses, scattered showers or more persistent spells of rain will spread from the southwest and some of these will be very heavy or thundery. Some mist and fog patches too. Lowest temperatures of 10 to 15 degrees, with mostly light southerly winds, freshening in the southwest towards morning.
TOMORROW - Sunday 30th August
Widespread showers or more persistent spells of rain tomorrow. These will be very heavy at times with thunderstorms and localised flooding possible. Some intense downpours will fall in a short space of time in parts with some sunny spells also. Highest temperatures of 16 to 21 degrees, with light to moderate, fresh at times, variable winds.
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.