Irish weather forecast: Forecasters warn of a ‘big cooldown’ at the end of October with temperatures set to plunge as low as -4C

Ireland is basking in a late Indian summer at the moment with temperatures of 18C predicted this weekend.

However, the mild spell may not last long as weather experts have warned there is a possibility of a “big cooldown” at the end of the month, with long-range weather charts showing temperatures dipping as low as -4C.

It comes as Ireland is set to experience one of the first frosty nights of autumn, with temperatures set to fall as low as 0C tonight.

Carlow Weather forecaster Alan O’Reilly shared the following update on the cold conditions.

He said: “Weather models showing a big cool down across northern Europe towards the end of the month.

This trend has been shown on and off for a while on the charts, will be interesting to see how it turns out.‬”

Alongside this, he shared a long-range map for October 26 which shows temperatures of -4C over the north and northwest of Ireland.

He also revealed the cooldown could begin next week, saying: “Looking at the pressure anomaly charts for the 23rd of October you can see both GFS and ECMWF are off the scale with huge area of high pressure forecast to setup in the Atlantic which will blocks of the jet stream and our usual unsettled autumn weather.

“This could see cooler than normal weather next week but whether it will bring that cooler air over Ireland or stay out east is a little uncertain”.