National Forecast
Issued at: 15 August 2026 11:00
TODAY - Saturday 15th August
Rather cloudy for a time today with isolated light showers. Generally dry however, with hazy sunshine gradually developing away from Atlantic counties. Highest temperatures of 15 to 19 degrees across west and northwest counties, with highs of 20 to 23 degrees elsewhere; all in mostly light northwest breezes.
TONIGHT
Low cloud, mist and drizzle will feed into west and northwest counties tonight, while staying dry elsewhere under broken cloud. Lowest temperatures of 10 to 14 degrees, in near calm.
TOMORROW - Sunday 16th August
Sunday will bring further scattered outbreaks of rain and drizzle to western and northern counties with just odd spot of drizzle elsewhere. Some rather sunny spells will develop at times across the Midlands, South and East. Highest temperatures of 17 to 24 degrees, in mostly light southwest breezes. Rather murky during the evening hours with low cloud, mist and patchy rain moving in across the country.
National Outlook
Overview: Mixed conditions generally with rain or showers at times but dry intervals too. Temperatures generally in the high teens in the northwest to low or mid-twenties in the south and east.
Sunday night: Mild and largely cloudy with some spots of rain and drizzle. Temperatures will not fall below 12 to 16 degrees in mostly light westerly breezes. Some mist and fog patches will develop.
Monday: Largely cloudy and becoming quite humid with outbreaks of rain and drizzle, mainly in the north until later in the afternoon when heavier and more persistent rain will push in from the northwest. Highest temperatures of 17 to 21 degrees for Connacht and Ulster, 20 to 25 degrees for Munster and Leinster with the best of any sunny spells, all with mostly moderate, occasionally fresh southwesterly winds developing.
Monday night: Mostly cloudy with outbreaks of rain, heavy at times over the northwestern half of the country, becoming patchier as it extends southeastwards. Temperatures not falling below 13 to 17 degrees in mostly moderate westerly winds, fresher for Atlantic coasts.
Tuesday: A fair amount of cloud with well scattered showers, becoming more isolated later with better sunny spells developing. Highest temperatures of 16 to 17 degrees in the northwest to 22 or 23 degrees in the southeast in moderate to fresh westerly winds.
Wednesday: Sunny spells and scattered showers, heaviest and most frequent in the north and west. Highest temperatures of 16 to 17 degrees in the northwest to 23 degrees in the southeast, in moderate, occasionally fresh westerly winds, veering northwesterly.
Further Outlook: Current indications suggest a cooler, fresher northerly airflow will dominate for the following days, bringing a mix of sunshine and showers.
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.