National Forecast
Issued at: 27 August 2026 18:30
TODAY - Thursday 27th August
Continuing wet across much of Munster, Leinster and east Connacht this evening. The rain will be heavy and persistent at times, with the chance of thunderstorms and the potential for surface flooding. Drier elsewhere, but still with isolated showers developing, some of which could be heavy with thunderstorms. All with light east to northeast winds.
TONIGHT
Outbreaks of rain will continue across much of the south, east, and midlands. The rain will turn heavy at times with thunder possible, before clearing eastwards towards morning. Drier elsewhere, with just a few showers and some clear spells developing too. Some mist and fog patches will form too. Lowest temperatures of 12 to 16 degrees, with light northwesterly or variable breezes.
TOMORROW - Friday 28th August
Any lingering rain in the east will clear, together with areas of mist and fog, to leave a brighter day for most with sunny spells and scattered showers. Some of the showers will be heavy and possibly thundery. Highest temperatures of 18 to 23 degrees, with light to moderate northwest breezes.
National Outlook
Overview: Unsettled with spells of rain and showers, turning heavy and thundery at times.
Friday night: Dry for most at first. Outbreaks of rain in the southwest will gradually extend over much of the country through the night, though northern areas may remain dry overall. Lowest temperatures of 12 to 16 degrees with mostly light variable breezes and some patches of mist and fog.
Saturday: A wet start for most with rain continuing. It will gradually clear eastwards through the morning and early afternoon with drier and brighter weather following. Highest temperatures of 16 to 21 degrees with light northerly breezes becoming westerly.
Saturday night: Mostly dry with clear spells. Outbreaks of rain and showers will move in from the west towards morning. Lowest temperatures of 10 to 14 degrees in light southerly or variable breezes with areas of mist and fog forming.
Sunday: Outbreaks of rain will become widespread, turning heavy at times with a chance of thunderstorms. Cooler than previous days with highest temperatures of 16 to 19 degrees in a light to moderate southerly breeze.
Monday: Breezy with showers feeding in from the west. Highest temperatures of 15 to 19 degrees in moderate, occasionally fresh, westerly winds.
Further outlook: Likely continuing unsettled on Tuesday and Wednesday with further rain and showers, and temperatures reaching the mid to high teens.
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.