It is a high pressure with its center just east of Finland and the Baltic States that is growing in over the country from the east during the next 24 hours. Warm and dry air means that there will be plenty of room for sun and high temperatures for the season, says Sofia Söderberg, meteorologist at SMHI.
Already on Tuesday, temperatures just below 30 degrees were measured in several places in southern Skåne. In Malmö, bathers flocked along Sundspromenaden.
High pressure dominates
It is primarily Götaland and southern and central Svealand that can look forward to summer heat in the coming days. Temperatures will land at many places at around 25 degrees and locally 28 degrees on Wednesday. Furthest south, the forecast points to up to 30 degrees.
It will be high summer heat. Also further north, it will get warmer than it has been in recent days. Furthermore, into Thursday and Friday, the high pressure is expected to dominate the weather picture over Sweden.
In the eastern and northern parts of the country, there may be some fog clouds at night that linger into the mornings before clearing up.
"Throwing off late summer"
Over the northwestern parts of Götaland and western Svealand, as well as the mountainous regions of Norrland, there is a risk of some clouds and showers on Wednesday and Thursday.
But it is generally warmer air that is coming in and a high-pressure dominated situation on Wednesday, Thursday, and Friday.
A bit into next week, the weather may swing around, so for sun worshippers, it's a matter of taking advantage of it. At the same time, notes Sofia Söderberg, it is possible that there will be more heat later in September.
Indian summer is at the beginning of October, so you can get these little throws of late summer, with temperatures of 20-25 degrees, both in September and at the beginning of October.