Temperatures to plunge from 20C to less than zero in just a few hours…
a marked contrast to balmy weather of up to 27C over past week.
Winds will turn increasingly northerly this weekend and bring much chillier air down over country from North.
Temperatures will be warmer in St Petersburg (21C) and Moscow (19C) in Russia and Minsk (18C) in Belarus
Thanks to Andrew S for this link