Ulster
Issued at: 27 August 2026 12:30
TODAY - Thursday 27th August
Dry for much of today with sunny spells. Some isolated showers possible this evening, especially in the east. Highest temperatures of 20 to 23 degrees in mostly light northeasterly breezes.
TONIGHT
Any lingering thundery showers in the east will clear tonight, then mostly dry with clear spells. Areas of mist and fog will form in light northwesterly or variable breezes. Mild with lowest temperatures of 12 to 16 degrees.
Pollen Forecast
Low.
Solar UV Index
Moderate.
TOMORROW - Friday 28th August
Mist and fog will clear tomorrow morning to leave a bright day with sunny spells. Some isolated showers possible in the south late afternoon or evening. Highest temperatures of 17 to 21 degrees with light, occasionally moderate, northwesterly breezes.
National Outlook
Overview: Unsettled with spells of rain and showers, turning heavy and thundery at times.
Friday night: Dry for most at first. Outbreaks of rain in the southwest will gradually extend over much of the country through the night, though northern areas may remain dry overall. Lowest temperatures of 12 to 16 degrees with mostly light variable breezes and some patches of mist and fog.
Saturday: A wet start for most with rain continuing. It will gradually clear eastwards through the morning and early afternoon with drier and brighter weather following. Highest temperatures of 16 to 21 degrees with light northerly breezes becoming westerly.
Saturday night: Mostly dry with clear spells. Outbreaks of rain and showers will move in from the west towards morning. Lowest temperatures of 10 to 14 degrees in light southerly or variable breezes with areas of mist and fog forming.
Sunday: Outbreaks of rain will become widespread, turning heavy at times with a chance of thunderstorms. Cooler than previous days with highest temperatures of 16 to 19 degrees in a light to moderate southerly breeze.
Monday: Breezy with showers feeding in from the west. Highest temperatures of 15 to 19 degrees in moderate, occasionally fresh, westerly winds.
Further outlook: Likely continuing unsettled on Tuesday and Wednesday with further rain and showers, and temperatures reaching the mid to high teens.
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.