A rain area with occasional heavy showers is moving northwards on Sunday, starting in northern Götaland, according to the Swedish Meteorological and Hydrological Institute.
It will then continue northwards over Svealand and southern and central Norrland, where it is expected to arrive in the evening. However, it is expected to have weakened by then.
In some areas, including northern Värmland and northwestern Dalarna, there may be more rain, large amounts, than in other areas.
In northern Norrland, there is high pressure with alternating sun and cloud and a temperature around 25 degrees.
A yellow warning has been issued and it concerns high water flows around southern Lake Vättern.
The Swedish Meteorological and Hydrological Institute forecasts unstable weather in large parts of the country during the coming week.