'Leave the Autumn coat at home': Forecasters predict mini-heatwave this week with 27C heat expected

"Highest temperatures of 23 to 26 degrees in a light east to southeast breeze." Picture: Denis Minihane.

Met Éireann is predicting a return to high temperatures on Tuesday as the mercury is set to soar into the high 20s.

The forecaster says the warmest temperatures of 27C will be felt mostly around the midlands, 25C in the southeast, and between 22C and 25C can be expected everywhere else.