National Forecast
Issued at: 05 January 2026 08:07
TODAY - Monday 5th January
Very cold to begin today, with frost and icy stretches on untreated surfaces slow to clear. Patches of freezing fog and some lying snow in places too. It'll be a dry and sunny day for most areas, with wintry showers mainly confined to north and northwest fringes by midday. Highest temperatures of only 1 to 6 degrees in light to moderate northwest to west winds.
TONIGHT
Cold and dry with clear spells for most at first tonight, though wintry showers will become more widespread in the north for a time early on. Widespread frost and icy stretches will form early on along with patches of mist and fog. Cloud will build from the west overnight, raising temperatures slightly, and outbreaks of rain or sleet will reach Atlantic coastal areas by morning. Lowest temperatures of -3 to +2 degrees, with light to moderate westerly winds backing southwesterly by morning.
TOMORROW - Tuesday 6th January
Cold and dry to start in the eastern half of the country tomorrow, with frost and icy patches. Outbreaks of rain and drizzle in the west will move eastwards through the morning and early afternoon, becoming patchier as they do. Sunny spells and scattered showers will follow. Highest temperatures of 3 to 8 degrees, coldest in the east, with mostly moderate southwesterly winds veering northwesterly in the evening.
National Outlook
Overview: Low pressure dominates bringing unsettled conditions with spells of rain spreading from the Atlantic.
Tuesday night: Any showers along Atlantic coasts will ease early on leaving dry conditions with clear spells. Cloud will build from the west later in the night. Lowest temperatures of -1 to +3 degrees with light to moderate northwesterly winds.
Wednesday: Patchy rain and drizzle will spread across the country from the west, possibly turning to sleet over higher ground. Staying cold in the east and northeast with highest temperatures of 3 to 5 degrees, but milder in the west and south with highest temperatures of 5 to 9 degrees, all in light to moderate southerly winds.
Wednesday night: Rain will clear eastwards early on with clear spells and isolated showers following. Lowest temperatures of 0 to 4 degrees with light to moderate westerly winds.
Thursday: There is uncertainty in the details but rain is likely to spread over the southern half of the country with scattered showers further north. Highest temperatures of 3 to 7 degrees with mostly light westerly or variable winds.
Friday: Likely a mix of sunny spells and showers, mainly affecting Atlantic coastal counties. Highest temperatures of 3 to 7 degrees, with light to moderate northwesterly winds.
Further outlook: Current indications show unsettled conditions for the weekend with a signal for some wet and blustery weather.
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.