With stifling early humidity and temperatures that rose into the low 90s on Wednesday and Thursday afternoon, trainers will be keeping an eye on the thermometer ahead of the Preakness.
The weather is expected to cool off Saturday, with clouds keeping the maximum temperature at about 70 degrees.
That's just fine with Classic Empire trainer Mark Casse.
"I'd rather it not be too hot, but the way I'm reading it — maybe I'm wrong — it's going to cool off a little bit on Saturday," he said Wednesday morning.
"I just think for any horse, the cooler weather's better. It doesn't matter what horse we're talking about. Horses love cool weather. They love it. They're not really the hot-weather animals."