Highest temperature in London on September 10?

What this question means

The third London question on this board, and together they trace a shape rather than three separate forecasts.

7 September peaks at 24°C. 9 September at 20°C. This one, the 10th, at 21°C with 55%, with 20°C close behind at 37%.

So: warm, then a drop of four degrees, then a slight recovery. That is a cool spell with a turn at the end of it, visible purely from how three distributions sit relative to each other.

The confidence is notable too. All three are tightly priced, which means the crowd is not merely guessing at a trend — it is fairly sure about each individual day and therefore about the trajectory connecting them.

Reading related questions as a series is a habit worth building. Any single one of these is a number; all three together are a narrative, and the narrative is usually the part worth knowing.