Storms and temperatures of 21C in a week of extremes
Ireland is due for a final blast of warm weather - but first we have to cope with heavy rain.
A status yellow rainfall warning has been put in place for Donegal, Mayo and Sligo, and is valid from 6pm last night for 24 hours.
Spot flooding is possible as the north and west of the country is battered by heavy rain today.
It will be a week of extremes - temperatures are set to reach up to 21C this week, but it's not all good news with the yellow weather warning in place for some parts of the country.
The forecaster was also warning of south-west winds that could reach gale force eight at times on coasts from Slyne Head to Rossan Point to Malin Head.
However, after the stormy spell there will be a touch of summery weather, particularly in the east of the country.
Met Éireann has said that we're going to enjoy "absolute max" temperatures for October this week.
In typical Irish fashion though we're in for a mixed bag weather-wise, so don't leave your rain jacket at home.
The forecaster said there would be some "very mild conditions persisting this week, in mostly brisk southerly winds, with frost-free conditions".
However, "a slow-moving band of rain is expected to bring heavy and persistent rain over the period, with rainfall amounts of 25-50mm expected".
"There is potential for higher amounts in mountainous regions. Spot flooding is possible," it said.
Tomorrow will be mild and humid, and the rain is set to stay away from Leinster and much of Munster. But heavy showers are expected across the far west and north-west. These will continue into the night and could lead to spot flooding.
On Wednesday, things will improve dramatically and there will be a touch of summer in the air, with temperatures expected to reach up to 21C.
Across the channel, the UK is set for highs of up to 25C as warm air from the Canaries looks to set a seven-year record for October there.
Enjoy the sunny weather while you can though, because it is set to deteriorate from Thursday, when more heavy rain will push in from the Atlantic.
Forecasters warned that there could be extremely windy weather pushing in later in the week, with the possibility of stormy conditions.