Weather Authority: Monday to be mild before high-pressure system brings rain, snow in the evening

PHILADELPHIA - Monday is off to a great start with a mild morning across the Delaware Valley, but a high-pressure system is moving precipitation into the area.

FOX 29's Sue Serio says temperatures are set to rise to the mid-50s by the afternoon.

By 9 p.m., rain will move into the region, but areas in the mountains will see a changeover to snow.

Forecasters say there could be a changeover to freezing rain or light snow in the Philadelphia area overnight.

Precipitation is set to be out of the area by Tuesday morning.

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Looking ahead, Tuesday will see colder temperatures.

A Winter Weather Advisory is in effect for Carbon and Monroe counties from 7 p.m. to 7 a.m. due to the anticipation of snow and slippery road conditions.