Friday will be a mostly cloudy day with outbreaks of rain and drizzle, with misty conditions along Atlantic coasts.
Drier brighter conditions will follow from the northwest later Friday afternoon and evening.
Highest temperatures of 15 to 20 degrees with moderate to fresh west to southwest breezes. It will be warmest in the southeast.
As for Friday night, it will be mainly dry with clear spells. Lowest temperatures of 9 to 12 degrees.
Saturday will be a bright, breezy day with sunny spells.
It will be mostly dry, apart from a few showers in northern areas.
Highest temperatures of 14 to 18 degrees with mostly moderate westerly breezes, but fresher in the north.
On Sunday rain will develop in the southwest and begin to spread north eastwards across the country.
It will continue through Sunday night. Highest temperatures of 14 to 20 degrees with light southerly breezes. It will be coolest in the north and warmest in the south.
And looking to the# start of next week, On Monday there will be outbreaks of rain that will continue for a time.
These will gradually clear eastwards with sunny spells and scattered showers following.
Highest temperatures of 16 to 19 degrees with moderate southerly winds, veering westerly.