The previous record high temperature in Sarnia for February 3 has been smashed.
The mercury at Sarnia's Chris Hadfield Airport hit 14 C (57 F) at noon Wednesday, shattering the mark of 7.9 C that had stood since 1991.
The seasonal norm for this time of year is -1 C. Just a year ago Sarnia-Lambton was in the deep freeze with cold weather alerts in effect.
The temperature will drop off to a low of -5 C Wednesday night as a cold front sweeps across the region.
A high of 1 C (34 F) is forecast for Thursday.
New record high temperatures were being set across southern Ontario Wednesday.
The city of Kitchener saw the earliest occurrence of 10 C or higher on record.
