National Forecast
Issued at: 21 June 2026 05:00
TODAY - Sunday 21st June
Dry today with long spells of sunshine, turning hazy later. Highest temperatures of 18 to 24 degrees, warmest in the west, in light east to southeast breezes.
TONIGHT
Dry and calm with clear spells. Just the chance of light rain or drizzle near northwestern coasts. Noticeably mild with lowest temperatures of 11 to 15 degrees.
TOMORROW - Monday 22nd June
Cloudy at first in Connacht and Ulster with light rain and drizzle possible mainly near northwestern coasts in the morning and early afternoon. Elsewhere will be mainly dry, warm and mostly sunny tomorrow with just the chance of an isolated shower. Hot and humid with highest temperatures of 20 to 27 degrees in just light easterly breezes.
National Outlook
Overview: Continuing generally dry with increasing temperatures. Some very warm or even hot days to come. A reminder to be sun-smart and stay safe if heading to the coast and waterways.
Monday night: Dry with clear spells and just light variable breezes. Another very mild night with temperatures not falling below 12 to 16 degrees.
Tuesday: A little cloudier and possibly cooler across west and northwest counties with isolated light shower possible. Mostly dry, warm and fairly sunny elsewhere though. Highest temperatures will range from 21 to 27 degrees, warmest for south and southeast counties, in a westerly breeze.
Tuesday night: Dry with increasing cloud and just the odd clear spells. A mild and muggy night with temperatures not falling below 13 to 17 degrees in light northerly winds.
Wednesday: Generally dry and warm or very warm with sunny spells and just isolated light showers. Highest temperatures will generally range from the mid to high 20s. A fraction cooler where onshore easterly breezes set in however.
Thursday: A hot and humid day with the chance of some heavier showers Thursday. Highest temperatures of 24 to 30 degrees in a light to moderate east to southeast wind.
Further outlook: Conditions look to turn cooler and more unsettled from Friday as high pressure loses its dominance of our weather.
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.