Although Lapland is located between the 65th and 70th northern parallels, it's climate is notably milder than e.g. Siberia or Greenland, which are located in the same latitudes. Among many factors affecting the climate, the warm airflows from the Atlantic warmed by the Gulf Stream are the biggest one to be thanked.
Due to Lapland's extended geographical coverage, the weather conditions can vary to a large extent between southern and northern parts of the region. The differences are especially notable during the autumn and spring when the temperature difference between north and south can be as much as 5 to 10 degrees.
Here's a quick glance on current weather across Lapland. For more detailed information, visit the provider of this weather data, Foreca, by clicking any of the boxes. Another good source for information is Finnish Meteorological Institute which provides general information about Finnish climate too, along with data on snowfall and daylight among others.