National Forecast
Issued at: 21 April 2026 19:00
TONIGHT
Tonight will be dry with clear spells for most but it will be cloudier in the southwest. Lowest temperatures of 2 to 7 degrees, coldest in Ulster, in a rather brisk easterly wind.
TOMORROW - Wednesday 22nd April
A dry and breezy day for most with variable cloud and spells of sunshine and just a few showers possible. However, it will generally be cloudier in the south-west with showery outbreaks of rain developing. Easterly winds will be mostly moderate to fresh but will reach strong at times near eastern, southern and southwestern coasts. Highest temperatures of 11 to 14 degrees, mildest in the west.
National Outlook
Overview: High pressure will largely dominate for the rest of the week with mostly settled conditions, along with a warming trend too.
Wednesday night: Some showers will affect parts of the West and Southwest early on. Otherwise, it will be a dry night with clear spells. Rather cool with lowest temperatures of 2 to 7 degrees, in a moderating easterly breeze.
Thursday: A dry and sunny day with no more than moderate southeasterly breezes. Very mild with highest temperatures of 13 to 18 degrees, best values further west.
Friday: Another dry, fine sunny day for most, again with no more than moderate southeasterly breezes. Warm in sunshine with afternoon highs of 14 to 21 degrees, best values again further west. Some thundery showers may feed into southwest counties.
This weekend: Remaining mostly dry with light winds and good spells of sunshine, as well as above average temperatures for late April. However, some scattered thundery showers may feed up in the flow.
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.