An immediate status yellow thunderstorm warning has been put in place by Met Eireann for nine counties as heavy rain showers will fall nationwide.
Monday was officially the second-hottest day we've ever had in Ireland, with temperature scales topping 33C in the Phoenix Park weather station - just .3 of a degree off the 33.3C recorded back in 1887 in Kilkenny Castle.
However, the mini-heatwave is set to break up on Tuesday, and the air will cool considerably thanks to rain showers, thunder and lightning, with some southern counties already seeing the clouds gather.
READ MORE: Met Eireann give date for summer heat return as country set to be hit with ‘thundery burst’
As such, an immediate weather warning was issued by the national forecaster on Tuesday morning for Carlow, Kilkenny, Wexford, Wicklow, Cork, Tipperary and Waterford.
In the afternoon, three further counties were added in Donegal, Cavan and Leitrim.
It's in place from 9.30a.m to 9pm this evening and reads: "Thunderstorm activity today for southern and eastern areas with localised heavy rainfall which may cause some localised flooding."
That's on top of the status yellow high temperature warning for the eastern half of the country, with Leinster counties being advised to be careful in the heat.
That warning reads: "On Tuesday the very warm weather will continue to occur over Leinster with daytime temperatures of 25 to 28 degrees. Impacts: Heat stress, especially for the more vulnerable of the population, high Solar UV index and risk of water related incidents."
Do the extreme weather conditions worry you at all? Share your thoughts in the comments below.
12 areas of Ireland are at risk of drought in the middle of the dangerous conditions currently sweeping over Ireland.
That's according to Irish Water, who have noted that the "vast majority" of their water treatment plants are continuing to meet the demand for water supply.
Since the middle of last week, we've seen temperatures slowly creep up day-by-day.
They reached a peak on Monday, but the water organisation is content with the overall situation.
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