Forecaster Met Eireann said there will be sunny spells and isolated showers on Saturday morning with heavier thundery showers becoming widespread throughout the afternoon.
Temperatures of between 16 to 19C are forecast but it will feel colder due to breezes coming in from the west of Ireland.
See below the latest cloud and rainfall forecast from our HARMONIE weather model. The animation goes from Saturday morning right through to Bank Holiday Monday morning.
More weather info here: https://t.co/9gKN6SDMVu pic.twitter.com/HfmeE9TlWS— Met Éireann (@MetEireann) August 1, 2020
Saturday night will see scattered showers early but dry, clear spells will develop overnight.
Sunday, will start mainly dry with sunny spells but scattered showers in the west and northwest of the country will become widespread through the afternoon occasionally turning heavy.
Temperatures of between 15 to 18C are forecast and there will be moderate, westerly winds sweeping across the country.
Most areas will stay dry on Monday with sunny spells during the morning, turning increasingly cloudy as the day goes on, while a few light showers are possible in the north and west.
However, temperatures are set to pick up from Tuesday with dry sunny spells forecast.