GFS and ECM have the Azores High or a cell split off from it close to the UK for pretty well all their runs, so mostly dry and settled. But the HP is rather variable, sometimes broad, sometimes narrow, sometimes up towards Scotland, sometimes down over the Channel.
So I don't exclude frontal rain brusing past the NW nor a spell of cold NE winds affecting the SE, both of which can make those affected wonder what happened to the HP. Need to watch developments day by day.
War does not determine who is right, only who is left - Bertrand Russell
Chichester 12m asl