PHOTO: Siobhan McNamara
While Saturday will be noticeably cooler than recent days, there will be some bright spells with Donegal staying mainly dry and crisp.
Temperatures will reach around 9ºC n light to moderate northwest winds, fresher along the north coast.
Showers will move in by evening, through there will be some clear spells. Overnight temperatures inland will range from 3ºC to 5ºC, though it will be milder along the coast with temperatures of around 6ºC to 7ºC.
Sunday will be cloudy with some clear spells. Outbreaks of rain will become more persistant throughout the day. There will be a further drop in temperature, with daytime temperatures of 5ºC to 7ºC in light to moderate mainly westerly breezes.
Temperatures will fall to around 1ºC to 3ºC overnight in inland areas, with coastal temperatures of around 4ºC to 6ºC.
Met Eireann has issued the following weather advistory effective from Monday, November 18 until further notice.
Deputy Head of Forecasting Liz Coleman says: “After an unusually mild start to November, people are going to get quite a shock as the temperatures plummet next week, which is why we have issued an Advisory for Ireland.
"Details are uncertain with the exact track of a low-pressure system on Sunday night and during Monday, but at present, some heavy and persistent rain is expected in the west and north with the possibility of some sleet and snow over parts of Ulster on Monday. Met Éireann will be monitoring this situation closely over the weekend.
“However, there is a high degree of certainty that by next Tuesday it is going to turn much colder as an Arctic airmass sinks over the country from the north. Daytime temperatures will often range around 2ºC to 6ºC with night-time temperatures widely falling below freezing, bringing widespread frost and ice.
"The northerly airflow will also bring showers of sleet and snow, these most frequent over the northern half of the country but there is potential for some showers to reach further south. These conditions will bring some hazardous travelling conditions, travel disruptions and poor visibility.
"The extent of the wintry showers in terms of snow is still unclear, but we will have more information as Met Éireann’ s high resolution model comes into play, which provides forecast information two days ahead.”
The cold northerly airmass looks set to linger over Ireland until at least Friday but possibly into next weekend too, although uncertainty increases after Friday.
Met Eireann is advising of the following potential impacts, with further warnings issued as the weather system takes hold:
- Hazardous travelling conditions due to frost and ice patches
- Poor visibility in wintry showers
- Travel disruption
- Animal welfare issues
Recommendations on how to prepare for cold weather including health, travel, vulnerable people, animal welfare and home safety can be found on winterready.ie, part of gov.ie
DonegalLive.ie will be keeping readers up to date with the latest local conditions and weather warnings affecting the county.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.