National Forecast
Issued at: 20 April 2026 05:00
TODAY - Monday 20th April
Mainly dry today with good sunny spells and just the chance of a light shower. After a cool crisp start for many, highest afternoon temperatures will range from 12 to 16 or 17 degrees, mildest in the southwest, in just light to moderate easterly breezes.
TONIGHT
Continuing dry for most tonight with long clear spells, though a few scattered showers will feed in from the east overnight, mainly affecting the northern half of the country. Lowest temperatures of 1 to 5 degrees in a light to moderate easterly breeze.
TOMORROW - Tuesday 21st April
Becoming breezy tomorrow with easterly winds increasing moderate to fresh. Staying dry overall with sunny spells and just isolated light showers, though it will turn cloudier at times in the southwest. Highest temperatures of 10 to 14 degrees.
National Outlook
Overview: High pressure stays close by for the week ahead with plenty of dry and bright weather. Breezy at first with moderate to fresh easterly winds, easing later in the week with temperatures increasing also.
Tuesday night: Dry with long clear spells, though remaining cloudier in the southwest. Lowest temperatures of 3 to 7 degrees in moderate, occasionally fresh, easterly winds.
Wednesday: Dry for many with sunny spells, though cloudier in the southwest with a few light showers there. Continuing breezy with moderate to fresh easterly winds, and highest temperatures of 11 to 14 degrees.
Wednesday night: Mostly dry with a mix of cloud and clear skies, though scattered showers will continue in the southwest. Lowest temperatures of 5 to 9 degrees, a little cooler in parts of Ulster, with mostly moderate easterly breezes, fresher near coasts.
Thursday: A dry and sunny day for most with just the odd shower possible. Highest temperatures ranging from 11 degrees in the east to 15 or 16 degrees in the west, with mostly moderate east to southeast winds easing through the evening.
Friday: Another dry and sunny day for most. Highest temperatures of 15 to 19 degrees generally in mostly light southeasterly breezes, though a little cooler near eastern and southern coasts where winds will be more moderate.
Further outlook: Remaining mostly dry and settled for the weekend with plenty of sunshine and temperatures in 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.