In Chapainawabganj, including a child, four people were killed by lightning at Charbaghdanga under Sadar Upazila in the district around 8:00pm.
The identities of the deceased could not be known immediately.
In Naogaon, two people were killed by lightning at Kushmari village under Dhamirhat Upazila in Naogaon district around 6:45pm.
The deceased were identified as Mahmudul Islam, 35, construction worker, and Sanwar Hossain, 32, also son of Abdul Sattar in the area.
Officer-in-charge (OC) of Dhamirhat police station Mirza Salam confirmed the incident.