Will Jelly set/keep if it isn't in the fridge?

[MsMarple]

I've got 20 or so little plastic dishes to fill with jelly for DS's birthday party at the weekend as I thought it would be easier to give them one each, rather than dish out from giant bowls. Clearly wasn't thinking straight, as I don't think they will all fit in the fridge.

Will Jelly set without the fridge, and will any terrible harm come to those who eat it if it does?

Haven't made jelly since I 'helped' my Mum with our parties, so apologies if its a dozy question!

Yes it will set it will just take longer!

In this weather I'd be very surprised if it sets and it won't keep out of the fridge before melting either. I wouldnt risk it.

I doubt it, I tried for about 3 dasy once and it was still runny!

Thanks for the advice, don't want to risk runny jelly!