Apparently the forecasted cold snap is for real. Here is the OES alert.

The National Weather Service has reported to OES that temperatures will drop into the 20 and 30s Wednesday night into Thursday, followed by daytime temperatures in the mid 40s in most areas. On Friday and into the weekend, temperatures will drop further, reaching the high teens to low 20s in most areas at night, and continued daytime lows in the mid 40s.