damn Weather turned around on me...

ey so anyways i got 2 plants outside because it was getting to be 70 F outside the past 4 weeks, the problem is the forecast fucking turned around and they say tommorow its going to snow, i cant put them indoors because of security reasons so what im asking is how bad will the cold affect them if its only 2 days? the forecast says that tommorows high will be above 40 and the day afters will be above 55 and after will just be 70's again. thanks

Cover them or they will probably die, very few strains can survive temperatures that I associate with snow.