Parts of Europe are under a heat advisory this week.
Spain could reach 45 degrees Celsius, France could see 41 degrees, and England could reach 31.
Ireland will avoid the temperature spikes.
But Carlow Weather's Alan O'Reilly says today should be warm and sunny - and tomorrow will be even better.
"Temperatures tomorrow could actually reach 25 degrees with some good sunny spells and only a very small chance of a shower. Could see a shower in one or two spots, but generally warm with Sunny spells".
