There is a possibility of frost overnight. Some weather sites are saying that if the temperature doesn’t go below freezing (32°F,) the “real feel” will.
You may want to cover your plants, especially the fragile ones. Plants are the most susceptible to damage during a frost. You can cover them with fabric, bed sheets, burlap, or commercial frost cloths are good insulators. Don’t use plastic. Click here to read more about protecting your plants.