EMB-145 Captain reported a possible lightning strike during severe turbulence. The flight crew reported a burning smell in the aircraft which dissipated gradually.

Narrative

We were flying through a line of thunderstorms and we were deviating left and right based on the radar target. The radar was painting nothing more than little patches of green. And I could see lightning strikes just up ahead from 10 o clock to 2 o clock. It looked to me that the lightnings were at lower altitudes and we were above the cloud tops. Suddenly we hit a moderate/severe turbulence and could not maintain altitude. ATC gave us an immediate descent. As we were descending through this area of lightning; FO and I smelled burning plastic. I thought we were struck by the lightnings and the smell was a result of scorched paint/metal on the airframe. FO mentioned possibility of wire melting. But I did not perceive any indication of fire or smoke. No EICAS msgs; no circuit breakers popped; everything was working as it should be. FA called and said they smelled smoke in the cabin as well but did not see smoke. I concluded that the smell was from the outside. We did not don the O2 masks as there wasn't indication of smoke. I told FO we don't have fire or smoke but if it develops any further; we will divert to the closest airport right away. At this time we were about 130nm from the destination.During the descent; the smell slowly faded away. We landed at the destination safely; no one was injured in the cabin. Post flight inspection did not find any signs of lightning strikes. The smell probably was Ozone from the lightning thunderstorm. I called Mx for suspected severe turbulence and suspected lightning strikes.We went through a pocket of turbulent air. The radar did not paint any severe weather. Possible lightning strikes nearby and ionizing ozone smell in the cockpit and the cabin.Use O2 mask for possible fume.