TODAY'S THE DAY more than 3,000 cyclists are due to take part in what's been described as the largest competitive cycling event in Southampton.

The event is being organised by ReesLeisure, which also runs the ABP Southampton Marathon.

Cyclists will tackle either a 60km or a 100km course.

But will the weather prove to be an uphill struggle or plain sailing?

Here's your forecast for Sat Sep 4, according to the Met Office.

9am Sunny intervals, less than 5% chance of rain, feels like 15 degrees, wind 15mph

10am Sunny intervals, less than 5% chance of rain, feels like 17 degrees, wind 15mph

11am Sunny intervals, less than 5% chance of rain, feels like 18 degrees, wind 13mph

12pm Sunny intervals, less than 5% chance of rain, feels like 19 degrees, wind 13mph

1pm Sunny intervals, less than 5% chance of rain, feels like 20 degrees, wind 12mph

2pm Cloudy, less than 5% chance of rain, feels like 21 degrees, wind 12mph

3pm Sunny intervals, less than 5% chance of rain, feels like 21 degrees, wind 12mph

4pm Cloudy, less than 5% chance of rain, feels like 21 degrees, wind 12mph

5pm Cloudy, less than 5% chance of rain, feels like 21 degrees, wind 13mph

6pm Cloudy, less than 5% chance of rain, feels like 20 degrees, wind 13mph

7pm Sunny intervals, less than 5% chance of rain, feels like 20 degrees, wind 13mph