Train service between Hämeenlinna and Toijala was halted by a fallen tree, while some 13,000 households lost power.
High winds blasted across south-western Finland Friday, cutting electricity to customers. The rare June storm peaked on Friday afternoon.
After several warm days, lightning bolts struck Finland about 16,000 times on Saturday. By evening, nearly 20,000 customers were without electricity. More trees may be felled as electrical storms move toward the Russian border.