The two displays in the LH column are indicative of the weather at the time you are looking at this page for Land's End (Penzance) and John O'Groats (Thurso).  The forecasts for the next 3 days can be scrolled through with the small arrows.

These forecasts are from a live weather source but with no warranties from Cycle : End-to-End (it'll probably rain )

Just remember what this chap had to say about the very idea of a storm some years ago!