Met Éireann said there was a lot of “uncertainty” about the outlook for the next few days in the aftermath of Hurricane Danielle.
This is the first hurricane of the season swirling over the North Atlantic Ocean but is now beginning to track north and northeast in a general direction of Ireland.
The forecaster said that right now Saturday is looking mostly dry with good sunny spells. Highest temperatures will be between 20C and 21C with light and variable breezes.
Current indications suggest that Sunday will start dry, with rain spreading from the southwest and becoming heavy.
The new forecast period in the early days of next week suggests persistent unstable conditions with rain at times and temperatures above the seasonal norm.
Alan O’Reilly of Carlow Weather said Hurricane Danielle’s current track shows it turning on Friday and returning to the southeast over the weekend, but there is still a chance of heavy rain on Sunday, but details remain unclear.
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Meanwhile, showers will be widespread across the country today, many will be heavy with localized thundery showers that may lead to occasional flooding.
The highest temperatures will oscillate between 17°C and 20°C in moderate easterly winds.
There will be further showers or longer periods of rain this evening, more frequent over the southern half of the country.
The lowest temperatures will oscillate between 13C and 14C with light to moderate east to northeast breezes.
On Thursday there will be sunny spells with showers in the eastern regions at first then spreading to all regions, some of them heavy with a possibility of thunder.
Showers will become isolated later in the day with high temperatures between 17C and 20C with light to moderate northeasterly breezes.
The showers will mostly die off and it will become largely dry for a while on Thursday evening, then the rain will roll in from the northeast and spread south, mainly affecting eastern counties.
The lowest temperatures will fluctuate between 13C and 14C with light to moderate northwesterly winds.
On Friday, the showers will be less intense and will become less frequent during the day. Highest temperatures will hover between 18C and 21C in light to moderate northwesterly breezes.