Issued at: 17 January 2021 18:00
Tonight will bring further patches of rain, drizzle and mist. Some frost too where skies clear. Lowest temperatures of 2 to 4 degrees, in just light southwest breezes.
TOMORROW - Monday 18th January
Some brighter spells early Monday. Generally dull and overcast though with scattered outbreaks of rain and drizzle, turning heavy in places later. Highest temperatures of 6 to 9 degrees in just light southerly breezes.
OUTLOOK: Unsettled and turning colder with some wintry falls possible.
MONDAY NIGHT: A wet and misty night with some heavy falls of rain. Minimum temperatures of 2 to 8 degrees, coldest in Ulster. Winds will be light and variable for much of the night, before increasing moderate to fresh southwesterly over the southern half of the country towards morning.
TUESDAY: A very wet day nationwide with heavy spells of rain, possibly turning wintry at times in the north. Spot flooding is likely with low cloud and mist too. Rather cold across the northern half of the country with highest temperatures ranging 4 to 8 degrees Celsius, in light variable breezes. Less cold across the southern half of Ireland with highest temperatures of 8 to 11 degrees Celsius. in moderate to fresh southwest breezes.
TUESDAY NIGHT: Scattered outbreaks of rain after dark with localised wintry falls. Frost and ice will set in too, especially across the northern half of Ireland. Lowest temperatures of -2 to + 5 degrees Celsius (north to south), in light to moderate north to northeast breezes.
WEDNESDAY: Outbreaks of rain, possibly turning to sleet and snow at times, in moderate northeast winds. Cold, with highest temperatures of only 2 to 4 degrees Celsius generally, but ranging 4 to 6 degrees Celsius across southern counties.
THURSDAY and FRIDAY: Cold with sunny spells and scattered showers, some wintry. There will be an added wind chill factor by day with frost and possible ice developing after dark.
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.