Not forecast, and I don't think so, been raining for too long - which tends to neutralise the static electricity which causes Lightning.
St David's Day falls on March 1 every year and if you want to wish a Welsh person a Happy St David's Day, you can say 'Dydd Gŵyl Dewi Hapus. ' The greeting is pronounced 'Deethe goo-eel Dew-ee happ-iss'.