The Weather Underground people are forecasting low temperatures of 21°, 17° and 22° in Copenhagen, respectively, for Wednesday, Thursday and Friday. The record lows for those dates are 24°, 19° and 19°.
Now it could be that the weather history that Weather Underground uses does not go back that far.
But then again, the Global Warming crowd ignores data that shows the Middle Ages were much warmer than today.
The normal temperature range for Copenhagen in January is 29° to 36°.
Other forecasts say it will be only slightly colder, no record.