National Forecast
Issued at: 20 November 2025 15:42
TODAY - Thursday 20th November
Most areas will stay dry and clear for the rest of the day but isolated showers will affect parts of the north and west. Northwesterly winds will be light to moderate.
TONIGHT
Tonight will be cold with widespread frost and some icy stretches. Most areas will be dry and clear but there will be isolated wintry showers in the northwest. Lowest temperatures of -3 to 0 degrees, possibly lower locally, with light and variable winds.
TOMORROW - Friday 21st November
Tomorrow morning will be cold with widespread frost and some icy stretches. After a dry and sunny start, cloud will build across the west and patchy light rain or drizzle will develop here. Cloud and rain will spread eastwards across the country through the afternoon, reaching the east coast during the evening, and it will become breezy. The rain will turn heavy at times in the west. Highest afternoon temperatures of 3 to 9 degrees, coldest in the north and east, with light to moderate southerly winds increasing moderate to fresh and gusty.
National Outlook
Overview: Turning less cold but unsettled.
Friday night: Wet and blustery early Friday night with widespread rain and moderate to fresh and gusty southerly winds. The rain will gradually clear eastwards overnight and will be followed by clear spells and scattered showers. Winds will ease and become westerly. Lowest temperatures of 0 to 5 degrees with frost possible later.
Saturday: Sunny spells and scattered showers at first. Cloud and rain will move into the southwest later in the morning and will spread northeastwards across the country during the afternoon, reaching Ulster by early evening. Highest temperatures of 7 to 12 degrees with light to moderate south to southwest winds, freshening in the southwest later
Saturday night: Saturday night will be unsettled with rain followed by showers, along with strong winds in some areas. Lowest temperatures of 1 to 7 degrees.
Sunday: Sunday will be windy with showery rain in most areas. Highest temperatures of 7 to 10 degrees with fresh to strong west to northwest winds.
Sunday night: Showers will continue during Sunday night and it'll be breezy with a moderate to fresh northwesterly wind. Lowest temperatures of 4 to 7 degrees.
Monday: Sunny spells and showers on Monday, mainly affecting coastal areas. Highest temperatures of 7 to 10 degrees with a moderate northerly breeze.
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.