Friday forecast: Temperatures in 20s with afternoon snow showers

A fourth consecutive day of sub-freezing temperatures is forecast in the Baltimore area Friday, with snow showers expected to snarl the afternoon commute, according to the National Weather Service.

Temperatures are expected to stay in the mid- to upper-20s throughout the day. Winds are forecast to be calmer than the past few days, with 5 mph breezes.

Light, powdery snow is expected to start falling by the early afternoon, with 1-2 inches of accumulation through the evening.

Nearly all of Maryland is under a winter weather advisory from 2 p.m. to 9 p.m. Snow accumulations of 1-3 inches are expected across the state, with the higher totals near the Mason-Dixon Line and in Southern Maryland, according to the advisory.

A weather service accumulation forecast map showed 2-4 inches possible in northern Carroll, Baltimore and Harford counties, with 1-2 inches for the rest of the Baltimore area.

The unofficial morning low temperature at BWI Marshall Airport was 11 degrees, the lowest of this cold snap. Though hourly readings at the airport hovered around 14 degrees, it appears a cold breeze sent the reading down a few degrees during the night, said Steve Goldstein, a weather service meteorologist.

Saturday could bring the first above-freezing temperatures since Monday, or possibly a fifth-straight day of sub-freezing temperatures, the longest such stretch in Baltimore since January 2004. Highs are forecast in the lower 30s, with lows in the lower 20s. Similar temperatures are forecast Sunday.

Next week could bring a brief warm-up, with highs around 40 Monday and in the lower 50s Tuesday.

Have a weather question? E-mail me at or tweet to @MdWeather.

Copyright © 2018, The Baltimore Sun, a Baltimore Sun Media Group publication | Place an Ad