Ulster
Issued at: 15 August 2026 05:30
TODAY - Saturday 15th August
Dry for most today with a mix of cloud and hazy sunny spells and just a few showers. Cloud will build from the west during the evening. Highest temperatures of 15 to 21 degrees, warmest in the east of the province, with light northwest to west breezes.
TONIGHT
Mostly cloudy tonight with patchy rain and drizzle, turning more persistent from the west later. Lowest temperatures of 11 to 14 degrees in light southwesterly or variable breezes with some fog patches developing.
Pollen Forecast
Low Saturday and Sunday.
Solar UV Index
Moderate Saturday and low to moderate Sunday.
TOMORROW - Sunday 16th August
Mostly cloudy tomorrow with scattered outbreaks of rain and drizzle. Highest temperatures of 16 to 19 degrees in light, occasionally moderate southwesterly breezes.
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.