Ulster
Issued at: 25 August 2026 07:00
TODAY - Tuesday 25th August
This morning will be mainly dry over Ulster with bright or sunny spells. Cloud will gradually increase from the south. Through the late afternoon and evening, showery rain will develop spread northwards over the region. Highest temperatures of 17 to 19 degrees with light to moderate easterly breezes.
TONIGHT
Tonight will be mild and mostly cloudy with showery rain continuing heavy at times. Temperatures will not fall below 13 to 16 degrees in light to moderate, occasionally fresh easterly winds.
Pollen Forecast
Low today and on Wednesday
Solar UV Index
Moderate today and on Wednesday
TOMORROW - Wednesday 26th August
Wednesday will be mostly cloudy with rain for time in the morning, but becoming light and patchy. Scattered showers in the afternoon and early evening, some heavy. Highest temperatures of 17 to 20 degrees with light to moderate east or southeast winds.
National Outlook
Overview: Unsettled with rain or showers, heavy or thundery at times.
Wednesday night: Showers or longer spells of rain early in the night with a continued chance of thunderstorms before becoming largely dry for a time with clear spells. Another spell of rain will move into southern areas towards morning. Mild and humid with temperatures not falling below 13 to 16 degrees in mostly light easterly breezes.
Thursday will start off dry in many areas. Rain in the south and southeast will extend northwestwards to most areas through the day, heavy at times with isolated thunderstorms and surface flooding possible. Highest temperatures of 18 to 22 degrees with mostly light easterly or variable winds.
On Thursday night, showers will gradually become more isolated. Patches of mist or fog may form. Lowest temperatures of 13 to 16 degrees with light, variable breezes.
Friday will bring a mix of bright or sunny spells and scattered showers. Highest temperatures of 17 to 21 degrees, warmest in the southeast with moderate west to northwest winds. On Friday night, rain will develop in the west and spread eastwards overnight.
On Saturday, rain in the morning will clear eastwards. Sunshine and showers will follow from the west in the afternoon. Highest temperatures of 18 to 21 degrees with moderate southerly winds becoming westerly as rain clears.
On Sunday, showery rain will spread eastwards across Ireland, heavy or thundery at times. It will be cooler with highest temperatures of 16 to 18 degrees and moderate southeasterly winds.
Current indications suggest that the early days of next week will continue unsettled with rain or showers at times.
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.