100 to 105F probably won't kill your plants, but it'll definitely slow them down. When temps get that high, plants try to restrict evapotranspiration by closing their stomata. The problem is, stomata need to be open to allow gas (CO2 and O2) exchange. So, it's kinda like putting a paper bag over a baby's head - it probably won't completely suffocate, but it probably won't grow properly either.
   Plus, they'll likely dry out really fast. Forget to water one afternoon, and you risk having to start all over again. Do you have any vents you could open during the hottest part of the day?