Fire Hydrant in winter

Icicles, a result from a water spray, formed on and around a fire hydrant on Reisterstown Road near Owings Mills Blvd. The hydrant was probably set to mist in order to prevent the plumbing from freezing in the cold temperature. (Kenneth K. Lam, Baltimore Sun / January 9, 2014)

It could be an icy commute Friday morning, with a period of snow and freezing rain expected before a shift to plain rain and an unseasonably mild weekend.

A wedge of cold air is forecast to be over the region as the warmer air moves in above it, allowing for the potential wintry mix of precipitation, according to National Weather Service meteorologists. 

A freezing rain advisory is in effect across Central Maryland from 3 a.m. through 9 a.m. Friday. Less than a tenth of an inch of ice accumulation is expected.

Temperatures are expected to be slightly below freezing in the early morning hours, but reaching the mid-30s by late morning, shifting the precipitation to rain.

Beyond that, mild, moist air is expected. Overnight lows were expected around 40 degrees Friday into Saturday, with rain likely continue through the day amid highs as warm as the lower 60s. Lows Saturday night and Sunday morning could remain in the 40s, with highs Sunday around 50 degrees.