The Duke of Edinburgh will present medals to Royal Marines from 40 Commando in Taunton later. A homecoming parade will also take place on the High Street to mark their return from Afghanistan.
It will be a chance to remember the 18 Royal Marines who lost their lives during the decade-long conflict.
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The agricultural event is now in its 157th year and although there was heavy rain forecast, it didn't deter the crowds.
In true Bank Holiday style we will see some rain for a time today. However, the rest of the week is looking drier, brighter and warmer.
Big Ben's famous booming bongs will be out of action for several months during urgent repair works, the House of Commons has announced.