Connacht
Issued at: 19 January 2026 17:00
TONIGHT
Mainly dry and cold tonight with clear spells, allowing some patches of frost and ice to form. Some mist and fog will also develop in light variable winds. Wet and windy conditions arriving into the province from the south towards morning. Lowest temperatures of -2 to +2 degrees.
Solar UV Index
Low.
TOMORROW - Tuesday 20th January
Starting off cloudy with wet and windy conditions moving northwards. The rain will be heavy at times. A clearance to drier conditions with sunny spells will follow in the afternoon before showers or further spells of rain push in from the south. Highest temperatures of 5 to 9 degrees, with fresh to strong and gusty easterly winds easing with the clearance of the rain.
National Outlook
Overview: Unsettled and mixed weather with showers, more persistent spells of rain, and breezy conditions all forecast.
Tuesday night: Breezy with scattered showers or more persistent spells of rain and just limited clear spells. Lowest temperatures of 2 to 6 degrees, with moderate to fresh and gusty southeasterly winds.
Wednesday: Current indications are that further north will see a mix of sunny spells and scattered showers, while further south will be cloudier with more persistent outbreaks of rain. Highest temperatures of 6 to 10 degrees, with moderate to fresh easterly winds, stronger on southern and eastern coasts.
Wednesday night: Widespread showers or more persistent spells of rain with limited clear spells. Lowest temperatures of 3 to 7 degrees with light to moderate cyclonic variable winds.
Thursday: Current indications are for scattered showers with limited bright spells. Highest temperatures of 6 to 9 degrees, with light to moderate southeasterly winds.
Friday: The detail is uncertain but current indications are for a breezy day with a mix of sunny spells and scattered showers or more persistent outbreaks of rain spreading northwards across the country. Highest temperatures of 5 to 8 degrees, with moderate to fresh southeasterly winds, stronger on Atlantic coasts.
Further outlook: While the detail is uncertain, low pressure continuing to dominate, bringing further showers or more persistent spells of rain.
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.