Clear skies due to a nearly stationary high pressure system and cool Canadian breezes created the unseasonably cold conditions.
The below-normal temperatures should end by Friday as the high slides off to the east. Readings are expected to be back in the 80s under sunny skies.
There will be a threat of showers on Saturday and Sunday, the National Weather Service said.
The record-high temperature for this date at the Columbus weather station was 98 degrees in 1918 while the record low was 51 in 1990. Sunset tonight will be at 8:39 p.m. and sunrise Friday at 6:37 a.m.