National Forecast
Issued at: 01 September 2026 14:10
TODAY - Tuesday 1st September
Many areas will be dry and cloudy this afternoon. Some scattered showery rain too, mainly affecting the northwest and west counties. A spell of rain will begin to move into the far Southwest this evening. Highest temperatures of 15 to 20 degrees, mildest and driest across Leinster and east Munster; all in a light to moderate southwest breeze.
TONIGHT
Some well scattered showers early tonight. However, rain in the southwest will gradually extend northeastwards, turning heavy in places overnight, especially across the midlands, south and east. Hill, mist and coastal fog too. The rain will ease in the southwest later. Lowest temperatures of 12 to 16 degrees, mildest for southern counties. Southerly breezes will be mostly light to moderate in strength, fresher though along southern fringes.
TOMORROW - Wednesday 2nd September
Wednesday will begin damp or wet, with heavy overnight rain moving off into the Irish Sea. While the rain will ease, patchy mist drizzle will follow at times later in the day too. Drizzle will turn heavy at times across the northwest counties, and along south and west coasts. However, warm sunny spells may also break through across parts of the Midlands, East and Southeast. Very mild and humid in a moderate southwest breeze, with highest temperatures of 17 to 22 or 23 degrees.
National Outlook
Overview: Unsettled with low pressure dominating bringing rain and showers. Breezy at times too.
Wednesday night: Well scattered showers and clear spells with moderate southwesterly breezes. A mild night with lowest temperatures of 13 to 16 degrees.
Thursday: Mainly dry to start with sunny spells and just well scattered showers. Outbreaks of rain will move in from the west through the afternoon, likely extending to most areas by the evening. Highest temperatures of 16 to 21 degrees with moderate to fresh west to southwest winds, strong at times near coasts.
Thursday night: Widespread outbreaks of rain will continue at first, heavy at times. The rain will likely become mostly confined to the south and southeast towards morning. Lowest temperatures of 12 to 16 degrees with moderate southwesterly winds, fresher along southern coasts.
Friday: A drier day for most with sunny spells and scattered showers, mainly affecting the north and northwest. Highest temperatures of 15 to 19 degrees with moderate to fresh westerly winds.
Saturday: There is uncertainty in the details with further outbreaks of rain likely. Highest temperatures of 15 to 19 degrees with mostly light southerly breezes.
Further outlook: Likely remaining unsettled on Sunday and Monday with further rain and showers.
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.