But there are signs that the weekend will be drier and possibly warmer, says Met Eireann.
And if you’ve been holding off on that BBQ, it looks like Saturday might be the day to fire it up.
“There will be rain and drizzle today, heavy at times this morning with fog also,” said a spokesman, “however some warm drier spells will develop later with highest temperatures 18 to 20 degrees in moderate southwesterly winds.”
Rain will clear tomorrow – but there will be heavy showers in the afternoon.
Thursday will be a rather cloudy day with some showers but dry most of the time. Highest temperatures will be around 16 or 17 degrees with northerly breezes, and the night-time will be cool and clear.
Some showers may still occur during Friday but generally the weather will be mainly dry, but with no great improvement in temperatures.
However it does begin to get warmer during Saturday as a ridge of high-pressure settles over Ireland and temperatures rise 19 to 21 degrees.
There should be good sunny spells throughout Saturday with very few showers. During Sunday outbreaks of rain will occur over Ulster, Connacht and north-Leinster, but the rest of the country will be largely dry. Heavy rain will spread southwards on Sunday night but early next week will be mostly dry.