The weather tomorrow in Ireland is set to warm up yet again, with some high temperature warnings coming into play.

Met Éireann meteorologist Deirdre Lowe said in an update on Thursday evening that it will become "very warm or hot over the coming days."

"As the fine weather is welcome for many, it also brings some hazards," Lowe said. These include high UV levels, water safety issues, heat stress, and uncomfortable sleeping conditions, as well as the risk of fires.

Looking ahead to Friday, Lowe said: "Any mist and fog will slowly clear tomorrow morning to leave another sunny day for most, however, some fog patches may linger in a few coastal areas.

"It will be very warm or hot tomorrow, with highest temperatures generally of 23°C or 28°C, a little fresher near onshore coasts and a light, southerly breeze.

"Very warm  or hot on Saturday with plenty of sunshine turning hazy over the western half of the country.

"The hot spell will peak on Saturday with widespread values in the high 20s and possibly reaching 30°C in a few spots.

"The highest value is likely to be in inland parts of Leinster, the Midlands, and into parts of Connacht, too.

"It will remain dry and muggy on Saturday night, though clouds will gradually build in the west and southwest. An uncomfortable night for sleeping, with temperatures not falling below 14°C to 17°C or 18°C degrees and a light southeasterly breeze."

🎧Hear the latest National Weather Forecast with Deirdre Lowe for today & the next few days

Listen here⬇️ pic.twitter.com/2Pl4tOhXfV

— Met Éireann (@MetEireann) July 10, 2025

Status Yellow - High Temperature for several counties

A Status Yellow - High Temperature warning is in effect for Cos Carlow, Dublin, Kildare, Kilkenny, Laois, Longford, Louth, Meath, Offaly, Westmeath, Cavan, Monaghan, Roscommon, and Tipperary from 12 pm on Friday, July 11 through 6 am on Saturday, July 12.

Status Yellow - High Temperature warning for all of Ireland

A Status Yellow - High Temperature warning will come be in effect for all of Ireland from 12 pm on Saturday, July 12 until 6 am on Sunday, July 13.

For the Status Yellow - High Temperature warning, Met Éireann expects maximum temperatures in excess of 27°C (80.6°F), combined with night-time minima in excess of 15°C (59°F).

Met Éireann says potential impacts during this weather warning include water safety issues due to increased use of lakes/beaches, possible forest fires, uncomfortable sleeping conditions, and heat stress.

⚠️Yellow High Temp Warning issued (affected regions on map below)⚠️

Max temps in excess of 27°C combined w/ night-time min in excess of 15°C expected.
Valid 11/7/25 12:00 to 12/7/25 06:00

⚠️Yellow High Temp Warning issued for Ireland⚠️
Valid 12/7/25 12:00 to 13/7/25 06:00 pic.twitter.com/ZgIdVkjFfQ

— Met Éireann (@MetEireann) July 10, 2025

HSE warns about heat stroke and exhaustion

With the high-temperature weather warnings in place, Ireland's Health Service Executive (HSE) has provided tips on how to prevent and spot signs of heat stroke and exhaustion, and what to do in the event of either.

With a status yellow high temperature warning in place over the weekend, it’s important to watch out for signs of heat exhaustion or heat stroke. Make sure to:
✅Drink plenty of cold drinks, especially when exercising
✅Take cool baths or showers
✅ Wear light coloured, loose… pic.twitter.com/N83ghrTBIK

— HSE Ireland (@HSELive) July 10, 2025

Extreme Forest Fire Risk Warning

Ireland's Department of Agriculture, Food and the Marine issued a 'Condition Red – Extreme Fire Risk' warning, its highest level of warning, in effect from 3 pm on Thursday until 12 pm on Monday, July 14.

"Arising from current weather patterns, an extreme fire risk is deemed to exist in all areas where hazardous fuels such as dead grasses and shrub fuels such as heather and gorse exist," the Department said.

The general public and forest visitors are advised not to light fires in and around forests or open land and not to attempt to intervene or fight fires under any circumstances. 

Fires should be reported to the Fire and Rescue Services via 112.

Risky few days for forest fires. If you see a fire- don’t leave it to others- call emergency services 🌳🌲🔥https://t.co/eP8EfK64kf pic.twitter.com/sfzXvwuufX

— Teagasc Forestry 🌳🌲🌳🌲 (@teagascforestry) July 10, 2025