Met Éireann have also announced that the all-time high temperature record could be broken today.
The Status Yellow high temperature warning which was put in place on Tuesday has been extended until 9am on Saturday morning.
⚠️Yellow High Temperature Warning for Ireland 🌡️
Maximum temperatures in excess of 27°C in many counties, combined with night-time minima in excess of 15°C expected.
⏳1200 Tue 23/06 to 0900 Sat 27/06
ℹ️ https://t.co/3041XHiRrK pic.twitter.com/1r8COiujxv
— Met Éireann (@MetEireann) June 25, 2026
Temperatures forecasted for today are expected to reach 33C this afternoon in parts of Mayo and Roscommon. Temperatures for the rest of the country are expected to reach the high 20s today.
Met Éireann have said that today will be "hot and humid" across the country today and will be dry with sunshine for most, with "thunderstorms developing at times." The forecaster have also warned people to "brace themselves" for a "tropical night" ahead.
The highest temperature recorded is 33.3C which was reached at Kilkenny Castle in 1887.
On RTÉ's Morning Ireland, Met Éireann meteorologist Gerry Murphy said that "there is potential for the record to be challenged but it's not in any way certain that it's going to be broken.
Murphy explained that there are a number of reasons for this. "The temperatures yesterday in the west didn't get up as high, because it was a fair amount of clouds so that means today is not starting at a high of base as it might be. And secondly, as we go through the day, there are actually thunderstorms off the west coast at the moment, and if the cloud moves in a bit more further inland and those thunderstorms begin to develop later, that may keep a cap on the temperature," he said.
UN climate chief, Simon Stiell told The Guardian that Europe's current heatwave has "the fingerprints of the climate crisis all over it" and is the latest price to pay for "fossil fuel pollution baking our planet”.
“Until humanity stops burning colossal amounts of coal, oil and gas, extreme heat will keep getting worse, and other climate impacts – from mega-droughts, floods, wildfires and storms – will keep hammering every economy and population harder each year," he said.
Stiell explained that the solutions are clear and encourages a faster switch to renewables, "which are now much cheaper than fossil fuels – as well as protecting forests and boosting climate resilience."
"Many countries need support to embrace clean energy and protect their peoples. There’s no time to lose," he continued.
