Ireland will have to endure some grim summer conditions early in the week - but temperatures are to reach as high as 23C by next Friday.
It will be a brutal start to the week weather wise for many areas as Met Eireann is predicting heavy and torrential downpours, which may spark flooding on Monday.
The weather conditions will improve on Tuesday but highs of just 18C are being forecast.
It will be warmer on both Wednesday and Thursday, with the south and east expected to get the best conditions.
And all going well, Met Eireann says temperatures will soar by next Friday on what is to be a breezy but humid and sunny day.
Here is a six-day forecast from Met Eireann:
Sunday
"Sunny spells and scattered showers this morning, the showers tracking eastwards across the country.
"By afternoon, showers will become largely confined to southern counties with good sunshine expected elsewhere and just isolated showers. However, cloud will thicken from the south during the evening and persistent rain will develop across Munster.
"Top temperatures of 16 to 20 degrees in moderate to fresh southwest winds."
Monday
"A wet start on Monday morning with outbreaks of rain, heavy and persistent in the east and southeast with a risk of spot flooding.
"However, drier and brighter weather will extend gradually from the west by afternoon with just well-scattered showers.
"Highest temperatures of 16 to 21 degrees, warmest in the southeast with moderate to fresh northwest breezes developing."
Tuesday
"It looks set to be mostly dry on Tuesday with sunny spells and just a few passing showers, these mainly affecting the northwest of the country.
"Feeling fresher than in preceding days with highest temperatures of 15 to 18 degrees in moderate northwest breezes. Cool and mostly clear on Tuesday night with just one or two isolated showers. Minimum temperatures of 6 to 9 degrees with light, variable winds."
Wednesday
"It is expected to start mostly dry on Wednesday with sunny spells. However, cloud will thicken in the south with rain expected to develop in Munster during the afternoon. Elsewhere, it will remain largely dry with further sunny spells.
"Highest temperatures of 16 to 20 degrees with moderate southeast breezes increasing fresh along southern and western coasts.
"Outbreaks of rain and drizzle will extend to much of the country on Wednesday night. Minimum temperatures of 11 to 14 degrees in freshening southeast winds."
Thursday
"Early indications suggest Thursday will be a humid and breezy day with scattered outbreaks of rain and drizzle. The rain is expected to be heaviest and most persistent in the west and north with the best dry spells further east and south.
"Highest temperatures of 17 to 21 degrees in fresh southeast winds. Rain affecting parts of the west and north on Thursday night but mostly dry elsewhere. A humid night with minimum temperatures of 13 to 16 degrees in fresh southeast winds."
Friday
"Humid and breezy on Friday with patchy rain in Atlantic coastal counties and hazy sunny spells elsewhere. Warm with highs of 19 to 23 degrees."
