The National Weather Service is calling for a 100 percent chance of precipitation in the York area on Sunday.
Temperatures will dip to, with the high expected to reach only 50 degrees.
Most of the rain should move out of the area by 8 p.m., the weather service says.
The overnight low Sunday into Monday will be 39 degrees.
Sunny skies are forecast for Monday and Tuesday, with high temperatures of 57 and 64, respectively.