Recent cooler conditions are on the way out in Finland, according to meteorologists, with a band of warmer air moving in from the south-west and south towards the weekend.
Before the weekend, daily highs are expected to be around 20 degrees nationwide, with dry conditions dominating except for some isolated showers.
By Sunday, however, warmer temperatures should be dominating and Central Finland will be experiencing highs in the mid to high twenties.
By Monday, the warmer weather should bring temperatures above 20 degrees as far as Lapland.
The rest of the country will experience more of a heatwave, according to Yle meteorologist Seija Paasonen, with temperatures above 25 degrees from Sunday.
Those conditions could last until early August at the latest, according to Paasonen.
"I don't believe that this will be a long-lasting heatwave," said Paasonen. "It's a matter of a few days of hotter temperatures."
Tuesday night was exceptional in Finland, as the temperature dipped close to zero even in southern Finland. Temperatures are expected to rise because a new weather system in the Atlantic is moving in, shifting the wind direction to the south.
Dry conditions are expected to continue for the most part, with forest fire risk high across most of the country outside the north.