National Forecast
Issued at: 11 August 2026 18:00
TODAY - Tuesday 11th August
Mostly dry this evening with a mix of cloud and sunny spells and light to moderate southerly winds. It'll be cloudiest in the west and southwest with a few patches of drizzle.
TONIGHT
It'll be cloudy tonight in parts of the west and southwest, with some scattered outbreaks of rain and drizzle at times, especially in coastal parts. Elsewhere, there'll be some clear spells, but with the likelihood of a few showers moving up from the south. There'll be some mist and fog around too, especially further to the south and southwest. Very mild, humid and muggy with temperatures not falling below 15 to 18 degrees in light to moderate south to southeasterly breezes.
TOMORROW - Wednesday 12th August
Tomorrow, Wednesday, will bring a good deal of dry weather, though there'll be some scattered outbreaks of rain or showers, especially further to the west. There'll be a good lot of cloud to begin, but with spells of sunshine too, the best of these in the east and southeast. It'll likely brighten up in many other areas through the day, though it'll probably stay mostly cloudy near some western and southwestern coasts, with some mist and fog possible in these areas too. A humid and very warm or even hot day with highest temperatures generally ranging from 23 to 28 or 29 degrees, highest in Leinster. Temperatures will be a little lower in some coastal parts of the west and southwest, ranging from around 20 to 23 degrees. Winds will be mostly moderate southerly.
National Outlook
Overview: Warm or hot and humid conditions for a time with sunny spells. Turning cooler by the end of the week. Some showers or rain likely in parts too.
Wednesday night: A largely dry night with clear spells over the eastern half of the county. Cloudier further west with further outbreaks of light rain or drizzle possible. Mild with temperatures not falling below 14 to 18 degrees, in a light southerly or variable breeze.
Thursday: Another warm or hot day with sunny spells and some further showers, especially in the west and northwest, turning heavy at times, with an isolated thunderstorm possible. Highest temperatures of 20 to 28 degrees, coolest along western coasts, in a light to moderate southwesterly wind.
Thursday night: Turning mainly dry Thursday night with some clear spells as any remaining showers ease. Lowest temperatures of 12 to 15 degrees in a light westerly breeze.
Friday: Friday will be a fresher day with highest temperatures falling back to between 17 and 22 degrees in a light to moderate northwesterly winds. A mix of sunny spells and scattered showers spreading from the west, becoming more isolated through the day.
The weekend: There is some uncertainty in the forecast for the weekend with current indications showing a cooler end to the week with temperatures falling back close to average. Saturday looks like a day of sunny spells and some scattered showers while Sunday has the potential to be a wetter day.
Temperature circle (°C): maximum and minimum temperature forecast for each day. Wind symbol (km/h): arrow points in the direction the wind is blowing. The weather and wind icons: for the time of maximum temperature and minimum temperature.