Heatwave official now in Northern Ireland - with temperatures of 29 °C expected today

Castlederg registered 25.4 °C yesterday in the highest maximum temperature in Northern Ireland, according to Met Office weather extremes.

The site also records the lowest minimum temperature as being 28.9 ° in Magilligan.

And the ‘sunniest’ area in NI has been recorded as Aldergrove at 10.0 hours.

Meanwhile, according to the Met Office Northern Ireland today will be ‘mainly dry with some hot sunny spells’.

Ahmad Javed, B&Q TradePoint colleague, hands out free ice cream at TradePointplaceholder image
Ahmad Javed, B&Q TradePoint colleague, hands out free ice cream at TradePoint

It says that today will be ‘another mainly dry day with some long spells of hot or very hot sunshine, although coasts a little cooler with onshore breezes developing’.

There will however he the ‘risk of the odd shower developing later in the afternoon’ and a ‘maximum temperature 29 °C’.

Tonight will be ‘a largely fine end to the day with some late sunshine but an increasing risk of showers overnight, perhaps occasionally heavy and thundery towards the end of the night’.

There will be a ‘minimum temperature 13 °C’.

A person digs for bait in Dublin Bay during the good weather.placeholder image
A person digs for bait in Dublin Bay during the good weather.

And tomorrow, will be “a rather cloudy morning with some showery, perhaps thundery, rain around”.

The Met Office says it will ‘become brighter from the south through the afternoon but still some showers around’.

It will be ‘a little cooler’ with a ‘maximum temperature 26 °C’.

And this weekend is expected to have a ‘dry, bright start on Saturday but occasionally heavy rain spreading east in the afternoon’

A man enjoys the good weather on St Stephen's Green, Dublin. "heat-dome" settling over western Europe has brought extreme conditions across the continent. Picture date: Wednesday June 24, 2026.placeholder image
A man enjoys the good weather on St Stephen's Green, Dublin. "heat-dome" settling over western Europe has brought extreme conditions across the continent. Picture date: Wednesday June 24, 2026.

Meanwhile, ‘Sunday and Monday look much cooler with sunny spells and showers and an occasionally fresh southwesterly breeze’.

Temperatures in Northern Ireland are expected to climb close to the all-time record today (Thursday).

That currently stands at 31.3C and was set in Castlederg in County Tyrone in July 2021, with similar temperatures expected today in western areas.

It is expected to be cooler and more manageable conditions towards the coasts with temperatures generally reaching the low 20s.

Heatwave conditions for Northern Ireland were met on Wednesday after 25C was recorded for three days in a row – a threshold set by the Met Office, external.

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