Saturday is forecast to be a dry and sunny morning for the most part but the weather will begin to turn in the afternoon.
Rain will move in from the Atlantic and extend across Munster and Connacht, finally spreading to Leinster and Ulster, with highest temperatures ranging from 15°C to 18°C.
It will become windy during the day with fresh to strong south to southeast winds developing.
Met Éireann has issued a status yellow rainfall warning for Cork and Kerry from 3pm Saturday afternoon until 3am Sunday morning, with heavy rain forecast.
There will be cloud with outbreaks of rain overnight on Saturday, according to Met Éireann, but it will become a humid night with temperatures not falling below 12°C to 16°C. Extensive mist and fog patches are also forecast.
Current indications suggest a cloudy and humid day on Sunday with patches of rain, drizzle and fog as well as sunshine breaking through.
Temperatures will be in the region of 17°C to 22°C in light southwesterly winds.
Sunday night will be a little fresher and less humid with mild clear spells.
The latest weather charts for next week suggest that the mixed weather is to continue, with some dry bright periods, but showers or spells of rain at times also.
With the closed period for chemical nitrogen and phosphorus starting on 15 September, Aidan Brennan looks at fertiliser limits.
In the beef management notes, Adam Woods look at meeting BDGP targets.
Meanwhile, for sheep farming management, Darren Carty examines the correct way to dip sheep.
With the window of fine weather allowing for harvest movement, Andy Doyle looks to the weeks ahead.