A weather outlook from the European Centre for Medium-Range Weather Forecasts (ECMRW) says the warmer temperatures Finland has experienced recently are only temporary.
The centre's forecast published on Tuesday predicts that Finland will have a few more days of milder weather but temperatures are set to drop again towards the end of the week. The ECMRW says that the chill could last as long as three weeks.
The centre predicts that the period from 16 April to 13 May will be colder than usual.
Yle: There's always hope
However, Yle meteorologist Anne Borgström said that there are always uncertain factors in long-term weather outlooks, saying the dismal prognosis may even be inaccurate.
But the veteran weather forecaster admitted the outlook doesn't look good. Despite the relatively balmy weather over the next couple of days, it will almost certainly get colder at the end of the week, she said.
Borgström said it is the jet stream which will bring in the cold air - the same, but chillier, atmospheric bands of wind which are also delivering Finland's current milder temperatures.
Wednesday and Thursday outlook
According to the Finnish Meteorological Institute's forecasts temperatures will be somewhat spring-like in Finland through the mid week. On Wednesday daytime high temperatures of around 15 degrees are expected in the south, in the low teens in central areas and around six degrees in the far north of Lapland. Mostly sunny skies, but cloudy - with possible rain - on the coasts.
FMI says to expect very sunny conditions and even warmer temperatures on Thursday.