It looks like many areas even in southern england will see snow next week from Monday.
Monday is marginal, with rain, sleet or snow for those who see precipitation but as we go through Monday night into Tuesday, the temperatures cool further and snow where there is precipitation becomes much more likely. Upper air temperatures are very conducive for snow.
Some significantly icy conditions are possible, especially where roads are currently flooded.
It looks like a pretty short lived cold spell at present, so for next week, winter returns.