There's a really sharp drop in the temperature over the past couple of days. I suppose we had an exceptionally warm summer this year, so any drop in temperature will be noticeable. It certainly seems very autumnal this morning, although the sun is out. The beginnings of changes to tree-colour. This is generally very striking in Milton Keynes. For a modern city, we are very fortunate to have so many trees, and so many varieties, so when autumn comes around, we get a lot of different colours as the trees begin to loose their foliage.