Leinster
Issued at: 17 August 2026 05:30
TODAY - Monday 17th August
Mostly dry today, and after a cloudy start, some sunny spells will develop in the afternoon. Cloud will increase again in the evening with rain gradually spreading from the northwest.A warm and humid day, with highest temperatures of 20 to 24 degrees in light to moderate westerly winds.
TONIGHT
Cloudy tonight with rain, drizzle and mist in the northwest spreading southeastwards early on, becoming lighter and patchier as they do. Drier conditions will follow towards morning. Mild with lowest temperatures of 14 to 17 degrees in light to moderate westerly breezes.
Pollen Forecast
Moderate.
Solar UV Index
Moderate, high in sunshine.
TOMORROW - Tuesday 18th August
Generally cloudy to start tomorrow with the odd light shower around. It will brighten up from the northwest through the afternoon with sunny spells developing. Cooler than recent days with highest temperatures of 17 to 20 degrees in light to moderate westerly breezes.
National Outlook
Overview: Mixed conditions with showers or longer spells of rain at times. Occasionally breezy too with temperatures in the high teens to low twenties.
Tuesday night: Dry with clear spells for most. Scattered showers will mainly affect the west and north, becoming heavy at times in the northwest towards morning. Cooler than previous nights with lowest temperatures of 11 to 14 degrees in moderate southwesterly winds.
Wednesday: Showers will become widespread across the country, turning heavy and merging to longer spells of rain at times. Breezy with moderate to fresh westerly winds, strong at times near Atlantic coasts, with highest temperatures of 16 to 21 degrees.
Wednesday night: Showers will ease becoming mostly confined to the north and west with clear spells developing elsewhere. Lowest temperatures of 10 to 14 degrees with winds easing light to moderate and becoming northwesterly.
Thursday: Another day of showers becoming widespread and again turning heavy and prolonged in places. Highest temperatures of 15 to 20 degrees with moderate, occasionally fresh, northerly winds.
Friday: Sunny spells and showers, not as widespread as previous days with more in the way of drier weather likely. Highest temperatures of 14 to 19 degrees with moderate northerly breezes.
Further outlook: Current indications show a more settled picture for next weekend with sunny spells and just isolated showers. Temperatures will likely range from 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.