Oh in the sim they don’t use METARs to display weather at airports. Well they use some values like temp dewpoint and altimeter. But the Meteoblue forecast is what creates cloud layers and vis and rain/snow etc.
For me in MN, USA - the weather is usually far off…about 4-8 hours old when compared to the METAR. I use Unreal weather for takeoff and landing and then switch back to LIVE enroute.