Met Eireann has warned of heavy downpours this week but has forecast sizzling temperatures later in June.
Leaving Cert weather is expected to hit in the coming weeks with "milder than average" conditions forecast.
However, the June Bank Holiday could be a wet one with "possible thundery downpours" on the way.
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Here's Met Eireann's 30 day forecast:
Week 1, Monday 30 May to Sunday 05 June
"Week 1 is signalled to be mostly unsettled as recent high pressure shifts westwards allowing for cooler air from the north to be pulled southwards over Ireland along with showery conditions.
"Temperatures will likely be below normal for much of the country, especially the north, east and midlands. In this set up, below average rainfall amounts are expected over much of the country, however, there will be localised higher amounts due to some heavy showers with possible thundery downpours.
"Rainfall warnings for intensity over short periods as well as possible thunderstorm warnings could be required.
Week 2, Monday 06 June to Sunday 12 June
"Week 2 is signalled to be more settled as high pressure looks set to move back over the country with increasing temperatures. Much of the southwestern half of the country will likely have above average temperatures with more normal temperatures for the time of year elsewhere.
"Rainfall amounts are expected to be below normal throughout the country. With these settled conditions, mist and fog during the nights are the most likely hazards.
Week 3, Monday 13 June to Sunday 19 June
"For Week 3, there is a less clear signal with high pressure likely to lose its influence and for no further high or low pressure systems to dominate.
"There is a signal for milder than average conditions over much of the country as well as average or below average rainfall.
Week 4, Monday 20 June to Sunday 26 June
"Similar to Week 3, Week 4 shows no signal of our weather being dominated by either high or low pressure. However, milder than average temperatures are expected to persist.
"Much of the country will likely have around average rainfall amounts though it could be a bit higher in parts of the northwest."
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