DH and I are going to a wedding next weekend so he brought new trousers and shirt (see attached picture) because it being in the middle of august we thought it would be warm.
However looking at the forecast it's going to be bloody cold and we're now thinking he's going to need something else with it, but I don't want to buy a jacket that matches his trousers for £££ when he's basically going to wear it for the ceremony outside then go inside for the reception and it sit on he back of a chair for the rest of the day.
Would a jumper/cardigan be ok or is it too casual for a wedding?
Thank you in advance