THERE are now less than 24 hours before hundreds of competitors swim, cycle and run their way to the finish line for the 11th Ironman UK in Bolton.

Here is how the weather is shaping up for tomorrow's event.

Across the course the outlook is predicted to be mild and overcast with only a very small chance of rain throughout the day.

Tomorrow's race starts with a swim at Pennington Flash in Leigh.

Conditions will be cloudy with a less than five per cent chance of rain, The Met Office predicts.

Temperatures are expected to be around 15 degrees.

In Bolton similar conditions will prevail with a possibility of some sunny intervals by mid morning and late afternoon.

Temperatures could rise to a high of 20 degrees by 3pm.

Humidity is expected to fluctuate between 84 per cent and 51 per cent over the course of the day.

For any hayfever sufferers the pollen count is predicted to be high.