Parts of Ireland will see highs of 17C on Monday - but large areas will experience heavy rain showers.
Met Eireann is forecasting a sunny afternoon after the morning mists clears.
However, it's expected that rain in northern areas will spread throughout the country later on. Highest temperatures will range between 12C and 17C.
A spokesperson said: "Today will start off mostly dry, with patchy mist and fog clearing to give bright or sunny spells, but scattered showers in the Northwest will become more widespread during the day with a few heavy ones.
"However, much of Munster and parts of South Leinster will be mainly dry, with just isolated showers.
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"Maximum temperatures 12 to 16 Celsius generally, but 17 degrees in parts of Munster. Winds will be light, mainly Northerly."
It's going to get quite cold again on Monday night, as temperatures drop to as low as 2C.
A forecaster said: "Tonight will be mostly dry, clear and cold. A few mist patches may develop. Temperatures will fall as low as 2 to 6 degrees with little or no wind."
Tuesday will be another bright day that is expected to see highs of 17C.
A Met Eireann spokesperson said: "Tomorrow will bring bright or sunny spells and some scattered showers. Temperatures between 13 and 17 degrees. Winds will be light variable."
Wednesday and Thursday will be similar days, with parts of Ireland to experience highs of 18C as well as scattered showers.
