Ulster
Issued at: 12 August 2026 16:00
TODAY - Wednesday 12th August
A warm and humid evening with a few hazy spells of sunshine and moderate southerly winds. Most places will be dry, but some showery outbreaks of rain may develop in the west of the province.
TONIGHT
It will be a mild and muggy night with variable cloud and clear spells. Staying mostly dry, but there will be scattered showers in the west of the province. Some mist and fog patches will also form as the night progresses. Lowest temperatures of 15 to 17 degrees in light winds.
Pollen Forecast
Moderate.
Solar UV Index
Moderate on Thursday and Friday.
TOMORROW - Thursday 13th August
Tomorrow, Thursday, will be another warm day with sunny spells and showers. A few of the showers could be heavy with isolated thunderstorms possible. Some mist and fog patches will develop in western coastal areas later in the day. Highest temperatures of 20 to 26 degrees, with light or moderate southwesterly winds.
National Outlook
Overview: Turning fresher by Friday with a return to a more Atlantic-driven regime by early next week.
Thursday Night: Any remaining showers or thunderstorms will ease eastwards on Thursday night, with clear spells and isolated showers following. Lowest temperatures of 12 to 17 degrees in light, occasionally moderate, westerly breezes.
Friday: Friday will be a fresher day with a mix of sunny spells and scattered showers spreading from the west, becoming increasingly isolated later. Maximum temperatures will fall back to between 17 and 23 degrees in light to moderate northwesterly winds. Mainly dry on Friday night with variable cloud and clear spells and just the chance of an odd shower in the west and north. Lowest temperatures of 10 to 13 degrees in mainly light west to northwest breezes.
Saturday: Saturday will be mainly dry with a mix of cloud, sunny spells and isolated showers. Highest temperatures will range from around 15 degrees in the northwest to 21 degrees in the southeast in a light to moderate west to northwest breeze.
Sunday: There is still a degree of uncertainty in the details for Sunday at present, but current indications suggest a mostly cloudy day with outbreaks of rain pushing in from the Atlantic, possibly turning heavy in the west and northwest later in the day. Highest temperatures of 15 to 19 degrees with light to moderate southeasterly winds freshening later near Atlantic coasts.
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.