Connacht
Issued at: 17 January 2026 05:00
TODAY - Saturday 17th January
Areas of mist and fog this morning, possibly lingering in some places through the day. Otherwise it will be mostly dry with a mix of cloud and sunny spells. During the afternoon, occasional showers may occur. Highest temperatures of 4 to 8 degrees in light southeasterly or variable breezes.
TONIGHT
Dry tonight but light southeasterly or variable breezes will allow fog to develop, becoming dense in places. Lowest temperatures of -1 to +3 degrees.
Solar UV Index
Low.
TOMORROW - Sunday 18th January
Fog will gradually clear from most places tomorrow morning. Dry for many for daylight hours with bright or sunny spells and just occasional showers. Towards the evening, outbreaks of rain will develop. Highest temperatures of 5 to 8 degrees with light to moderate southerly winds which will freshen with the rain.
National Outlook
Overview: Generally unsettled with rain or showers each day though there will be drier intervals too.
Sunday night: Turning cloudy as outbreaks of rain and drizzle gradually extend eastwards across the country. Lowest temperatures of 1 to 5 degrees in moderate, occasionally fresh south or southeast winds, easing later in the night.
Monday: Mostly cloudy at first with outbreaks of rain and drizzle, becoming largely confined to the north and east in the morning and to the north through the afternoon as drier and brighter conditions extend from the west. Highest temperatures of 5 to 9 degrees in mostly light variable breezes
Monday night: Cloud along with outbreaks of rain and drizzle in the north will clear away, becoming largely dry, clear and cold for a time with fog developing in light southeasterly or variable breezes. Lowest temperatures of -2 to +3 degrees. Towards morning, outbreaks for rain will develop in the southwest with freshening winds.
Tuesday: Fog will clear through the morning as it becomes breezy with fresh and gusty southeasterly winds extending northeastwards. Outbreaks of rain, heavy at times, will also gradually extend northeastwards, though much of the north and northeast will stay dry through the day. Highest temperatures of 6 to 9 degrees.
Wednesday: Current indications suggest a breezy or windy day with outbreaks of rain, heavy at times. Highest temperatures of 7 to 10 degrees with fresh to strong and gusty southeasterly winds.
Further Outlook: Likely continuing unsettled with spells of rain and showers for Thursday and Friday.
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.