At least on Sunday, in the east and south-east parts of the country, regional fog will be initially chased away by sunshine. But thick clouds are due to follow, although they will not initially produce rain.
In the rest of the country clouds will gather and bring heavy rain while the temperatures will reach around 7 Celcius in the north east and a more cheerful 17 in the south west.
Rain will pull across from the north west and west to the south east on Sunday night and temperatures will drop to around 2 Celcius in the north east and around 11 Celcius in the south west.
Monday will be rainy in the south east, with temperatures between 7 and 13 Celcius, while conditions are expected to dry up somewhat from Tuesday.