Arvika Westlanda airport does not have a METAR station. This page uses the weather data provided by the SMHI station next to the field. The station updates once per hour and there are no guarantees about the accuracy. The same applies to Sunne / ESKU. This page only presents the data in a format pilots are comfortable with. Source for nearby METARS: AROWeb.
Big thanks to Marcus Hermansson for the excellent essd.se briefing page which inspired us to build something similar for Arvika.