The National Weather Service forecasts damp and chilly conditions for tonight's playoff game, with temperatures dropping into the 40s by the time the Orioles and Yankees wrap up.
Periods of light rain are expected as well, but no heavy downpours are forecast, said Carrie Suffern, a meteorologist.
"People should be prepared — wear coats, jackets, that kind of thing," Suffern said. "At least it's not 100 degrees."
The temperature was 55 at the Inner Harbor Sunday morning, well down from the average of 72 for the date. Suffern said the chilliness was the result of Arctic air pushing down into the region from Canada.