Réamhaisnéis Náisiúnta
Issued at: 21 October 2026 21:00
TONIGHT
Outbreaks of showery rain will occur early tonight with isolated thunder possible. The rain will clear northeastwards, with drier, clearer and cooler conditions following overnight. Lowest temperatures of 0 to 6 degrees, coldest away from west and southwest coasts, all in a light southwest or variable breeze.
TOMORROW - Thursday 22nd October
Starting mostly dry with sunny spells and well scattered showers across the west and north on Thursday. However, very heavy rain will develop in the southwest during the afternoon, extending northeastwards during the evening hours. Localised flooding is possible, especially in Munster and Leinster. Light to moderate east to northeast winds will strengthen later too. Very wet and windy across southern counties during the evening. Highest temperatures of 10 to 14 degrees.
National Outlook
Overview: Very unsettled, with frequent wet and windy spells.
Thursday night will be very wet and windy, stormy even in the southeast. Widespread heavy and persistent rain will affect much of the country with some flooding expected across southern and eastern counties. Isolated thunderstorms will occur too. Cyclonic variable winds will veer northwest and further strengthen overnight, reaching gale force in places. Lowest temperatures of 5 to 8 degrees.
On Friday, lingering wet and windy weather will clear eastern counties by around mid-morning. Sunshine and well scattered blustery showers elsewhere will follow for the rest of the day, mainly affecting western counties. Highest temperatures of 9 to 13 degrees. Fresh and gusty northwest winds will moderate before evening.
Friday night will be largely dry and clear early on. However, wet and rather windy weather is expected to move in from the west later in the night. Lowest temperatures of 3 to 8 degrees. Westerly winds will back southerly and freshen, with strong and gusty winds near south and west coasts.
Saturday will be rather wet and windy early on with spells of heavy rain, turning more showery through the day. Fresh to strong and gusty south to southwest winds, will reach gale force in some Atlantic areas. Humid with highest temperatures of 12 to 16 degrees, mildest across Munster and Leinster.
During Saturday night, some thundery showers will affect the north and west with the odd heavy shower arriving further east. Lowest temperatures of 6 to 9 degrees in a brisk westerly wind.
Sunday will be a cool breezy day with sunshine and showers, some heavy, especially in the west and north. Highest temperatures of 9 to 12 degrees in a fresh and gusty westerly wind.
Sunday night will be largely dry with clear spells. Some areas of mist and fog will form though, in just light to moderate south to southwest winds. Lowest temperatures of 4 to 8 degrees.
Public Holiday Monday is expected to be wet and windy. Mild and humid too.
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.