Ulster
Issued at: 20 July 2026 17:00
TODAY - Monday 20th July
Generally cloudy and dry. Some sunny spells further east. Light to moderate northerly breeze.
TONIGHT
Generally cloudy with the odd spot of light rain or drizzle, but with some clear spells further east in the province. Lowest temperatures of 11 to 14 degrees, with a mostly light northerly breeze.
Pollen Forecast
High.
Solar UV Index
Moderate to high.
TOMORROW - Tuesday 21st July
Starting off generally cloudy but with some good sunshine developing away from the northwest through the afternoon. Highest temperatures ranging from 15 degrees in the north of the province to 20 degrees in the south, with a light, occasionally moderate, northerly breeze.
National Outlook
Overview: The week ahead will see high pressure bringing dry and warm conditions for most with some decent sunshine too. It will be a bit cooler in the northwest and north though, where it will also be a bit cloudier with some light rain or drizzle possible at times too.
Tuesday night: Dry for most with clear spells, but cloudier further north with a little light rain or drizzle possible. Lowest temperatures of 10 to 13 degrees, with a light to moderate northerly breeze.
Wednesday: Once again starting off cloudy further north with the best of any early sunshine further south, and with sunny spells becoming more widespread through the afternoon and evening. Highest temperatures of 19 to 23 degrees generally, but a little cooler near north-facing coasts, with light to moderate northerly breezes.
Wednesday night: Dry for most with clear spells, but becoming cloudier in the northwest and north with a little light rain or drizzle possible towards morning. Lowest temperatures of 10 to 13 degrees, with light north to northwest breezes.
Thursday: Another similar day, starting off generally cloudy with some light rain or drizzle possible, but with sunny spells further south becoming more widespread through the day. Highest temperatures of 18 to 24 degrees, coolest in Connacht and Ulster and warmest in Leinster and Munster, with light, occasionally moderate, north to northwest breezes.
Friday: Another day of sunny spells becoming more widespread as the day progresses, and with just a little light rain or drizzle possible over the northwestern half of the country. Highest temperatures of 18 to 25 degrees, coolest near Atlantic coasts and warmest in the south and southeast, with light to moderate northwest to west breezes.
Further outlook: Current indications are for conditions to become more mixed over the weekend as the influence of high pressure wanes, with some rain and showers expected, but also some sunny spells, especially in the south and east. Highest temperatures will range from the mid to high teens in west and north, to the low to mid-twenties in the south and east.
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.