A cold front extending from a low pressure system north of the British Isles is expected to move through the region on Friday, bringing another chance for showers ahead of it around mid-day. The front will weaken as it passes through, however low temperatures for Saturday morning are still expected to cool from Friday's, though not as severely as initially thought.
The weekend will round out with another cold front approaching the region from the west. Winds continuing from the south to southwest ahead of the front will bring slight chances for isolated showers on both Saturday and Sunday, though with lighter rainfall than seen earlier in the weekend. However, the front itself will bring heavier rainfall as it passes through Sunday, which could impact conditions in the final hours of the race, depending on the timing of the passage.