Are my squash seeds done for?

Hi,
On the 16th of this month I sowed 30 squash seeds in individual pots, watered them and popped them in the polytunnel. Since then inside the polytunnel daytime temperatures have been in the high teens low twenties. Last night we had a FROST! Should I be looking to buy more seed or will they be OK?
Jen

 

Squash seed need much higher temperatures, they would have been better off indoors, preferably in a propagator/over another heat source, I reckon they're probably rotten/dead.

 

I agree with Scrungee - they're toast.

 

Well not quite, Bon Bon and Festival have all germinated and Sweet Dumpling looks to be breaking through. Nothing doing with other six varieties....