Met Éireann’s status yellow warning for high temperatures this weekend has been extended by 24 hours.
The warning comes into effect today, Friday at 12pm, and will now expire at 6am on Monday after it was updated this morning.
The forecasters say that it will be very warm or hot on Friday and Saturday with maximum temperatures generally of 27 to 30 degrees and locally higher.
It will be warm overnight with minimum temperatures generally around 15 degrees.
The warning was issued for all counties in the Republic, but temperatures may not be as high in coastal areas due to sea breezes, particularly in the northwest.
Met Éireann says that the impacts of the warmer weather could lead to heat stress, especially for more vulnerable people.
There will also be a high solar UV index and an increased risk of water related incidents.
Temperatures are expected to return to normal by next week.