Record-high temperatures are being predicted for Windsor-Essex this week.
It will be a warm front from the American southwest pushing the mercury well above freezing.
Environment Canada's forecast calls for a high of 14C on Tuesday. That would break the previous record of 11.6C set set in 2006.
Geoff Coulson, a warning preparedness meteorologist with Environment Canada, said there could be a thunderstorm Tuesday afternoon.
"It's fairly rare. It does happen from time to time. It takes a lot to get enough instability in the atmosphere to generate thunderstorms at this time of year," he said. "But we have seen them from time to time in the past. Though in this particular case. It's just a testament to how warm the temperature getting."
Wednesday, the forecasted high of 11C would break the current 9.5C record for Jan. 30, set back in 1988.
Coulson says temperatures in Windsor-Essex will dip below normal again on Friday.