Will Venus Fly Traps survive a 80°F-100°F summer?

Sure! Venus Fly Traps are native to an area close to Wilmington, NC. If you check the temperatures in Wilmington, NC, you will see that the high temperatures average between 80°F and 90°F degrees during the summer months, with record highs in the 100°F range. Thus, Venus Fly Traps would have no problem taking temperatures in the 80°F to 100°F range since that is what they get in their native habitat.