Two counties are forecast to hit the 30C mark as Ireland gears up for the hottest day of the year.
The majority of areas will be in the late 20s but Laois and Carlow are currently forecast to be the hottest in the country.
According to Met Eireann, Carlow Town will see the mercury peak at 3pm at around 32C while it will be a roasting 30C in Portlaoise from 3pm to 4pm.
The midlands and east of the country will be warmest while the west will be slightly cooler with Kerry for example having around only having highs of 20C.
However thunderstorms will barrel in at around 4pm today with Met Eireann issuing a Status yellow warning for the entire country.
A forecaster said: "Heavy thunderstorms are expected to develop later on Thursday and Thursday night with some severe downpours, hail and spot flooding.
"Due to the localised nature of thunderstorms some parts of the country will remain dry."
Thunderstorms are unpredictable and hard to forecast so it's unclear which counties will get drenched and which will avoid them altogether.
Here's how hot each county will be today;
County by county forecast - Thursday
Dublin - 26C
Kildare - 28C
Cork - 25C
Cavan - 27C
Meath - 29C
Louth - 28C
Wicklow - 22C
Westmeath - 27C
Limerick - 26C
Mayo - 25C
Tipperary - 27C
Monaghan - 28C
Donegal - 21C
Offaly - 28C
Galway - 26C
Clare - 25C
Kerry - 20C
Roscommon - 26C
Kilkenny - 27C
Longford - 27C
Laois - 30C
Wexford - 29C
Waterford - 26C
Carlow - 32C
Sligo - 24C
Leitrim - 25C
Met Eireann's forecast for next two days
Thursday
"Today will be dry and warm with sunny spells. As the heat builds through the day there's a risk of thunderstorms developing towards evening. Afternoon temperatures generally between 22C and 25C are expected to reach as high as 28C in Leinster and Ulster. Winds will be light, northerly or variable in direction.
"The risk of thunderstorms continues through tonight with Ulster most at risk. While many places will stay dry throughout, where thunderstorms do occur there's a risk of spot flooding and hail. Lowest temperatures will be between 11C and 14C in the west and south of the country and will stay as high 17C or 18C through the night in Leinster and Ulster. Winds will continue light and variable in direction."
Friday
"Tomorrow, Friday, will start out mostly dry with sunny spells, there'll be further showers, some of them heavy.
"Temperatures in the south and west will be between 15C and 17C, and between 22C and 24C in the east and north. It'll become noticeably cooler in the early evening. Winds will be light to moderate from a southwesterly direction."
