Connacht
Issued at: 18 November 2025 06:00
TODAY - Tuesday 18th November
Sunny spells and scattered showers today, Tuesday. Some of the showers will be heavy, mainly further north, where there's a chance of hail. Becoming breezy especially from the afternoon, with west to northwest winds increasing moderate to fresh and gusty, veering northerly later and becoming stronger, especially in coastal parts. Highest temperatures of 6 to 10 degrees, but feeling colder, with an added wind chill factor.
TONIGHT
Cold and breezy tonight with clear spells and scattered showers. A few of the showers could be heavy and may turn wintry with hail and sleet, with some snow possible too, mostly about higher ground. Lowest temperatures of 0 to 3 degrees with some frost and icy patches in moderate to fresh and gusty northerly winds, stronger along exposed coasts. Winds will tend to ease overland as the night goes on.
Solar UV Index
Low.
TOMORROW - Wednesday 19th November
Cold tomorrow, Wednesday, with sunshine and scattered showers. Some of the showers will fall as sleet and hail with some snow possible too, mostly about higher ground. Highest temperatures of just 4 to 7 degrees, but feeling even colder with an added wind chill factor from moderate to fresh north to northwest winds, stronger near exposed coasts.
National Outlook
Overview: Cold through midweek with wintry showers possible, especially in Ulster and north Connacht. Milder Atlantic air returning by Friday.
Wednesday night: Wednesday night will bring clear spells and further scattered showers, mainly in the north and west. Some of the showers will be wintry, especially in Ulster, though the showers will become increasingly isolated overnight. Lowest temperatures of -3 to +2 degrees, coldest in the east and south, with a fairly widespread frost and some icy patches developing. Light to moderate north to northwest winds will be a little fresher near coasts.
Thursday: Cold and frosty to begin on Thursday with sunny spells. Showers, mainly in the west and north, some of them still wintry, will become increasingly isolated as the day goes on. Highest temperatures of 3 to 7 degrees in light to moderate northwesterly breezes, still fresh at times near eastern and southern coasts. Dry and turning very cold soon after dark on Thursday night, with clear skies and light variable breezes. Cloud will gradually thicken from the west overnight with patchy rain and drizzle developing near Atlantic coasts towards morning. Lowest temperatures of -3 to +2 degrees with frost and icy patches.
Friday: Mostly cloudy to begin on Friday with outbreaks of rain and drizzle gradually spreading eastwards over the country through the morning and afternoon. Freshening southerly winds will usher in milder Atlantic air with the rain. Afternoon highs will range from 4 or 5 degrees in the northeast to 10 or 11 degrees near western and southwestern coasts. Remaining rain and drizzle will clear the east coast early on Friday night with clear spells and a few showers following. Moderate to fresh southerly winds will veer light to moderate southwest to west with the clearance. Lowest temperatures of 2 to 7 degrees.
Saturday: A few brighter intervals in the east and north at first on Saturday but mostly cloudy overall with outbreaks of rain spreading from the Atlantic. Light to moderate southerly winds veering southwest to west later and increasing moderate to fresh. Highest temperatures of 7 to 12 degrees.
Further Outlook: Continuing generally unsettled with Atlantic low pressure tending to dominate. Temperatures generally close to average.
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.