National Forecast
Issued at: 15 March 2026 23:00
TONIGHT
Tonight will bring a mix of clear spells and scattered heavy blustery showers, mainly affecting Ulster and Connacht, some of hail with the odd wintry fall over higher ground. Cloudier conditions with patchy rain and drizzle will arrive into Connacht and southwest Munster towards morning. Lowest temperatures of 1 to 5 degrees, coldest early on, with rather brisk westerly winds becoming southwesterly and moderating.
TOMORROW - Monday 16th March
Monday will be a mostly cloudy day with outbreaks of rain and drizzle spreading northeastwards during the morning, heaviest across Connacht and Ulster. It will become drier through the day with some sunny spells breaking through. The odd spot of drizzle will still occur though with hill, mist and coastal fog in places. Highest temperatures of 9 to 12 degrees in a freshening southwest breeze.
National Outlook
Outlook: Becoming settled from midweek with mostly dry and fairly calm weather. Mild in any sunshine too.
Tuesday night: Mostly dry but with some mist, drizzle and fog in places. Lowest temperatures of 2 to 9 degrees, coldest under clearing skies across Atlantic counties, in just light to moderate southwest breezes.
Wednesday: Patchy rain or drizzle will occur, but amounts will be minimal with some areas staying fully dry. Early morning mist and fog will tend to clear, and some sunny spells will develop later in the day. Relatively mild with light easterly or variable breezes. Highest temperatures of 11 to 16 degrees, mildest across Leinster and south Munster.
Thursday: A pleasant day with widespread spring sunshine. Mild with highest temperatures of 12 to 18 degrees in no more than moderate easterly winds, feeling cool though along exposed coasts. Cold after dark with lows of 1 to 4 degrees.
Friday: Another dry day with spells of hazy sunshine in just light easterly breezes. Highest temperatures of 12 to 17 degrees, best values further west.
This weekend: Turning somewhat cooler but staying dry and settled with just light breezes.
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.