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Boston Weather: 46.0°F | Light Rain Fog/Mist

Weather: It Begins...

By David Flagg

Staff Meteorologist -- The winter weather, that is. A complicated weather scenario will develop over the Northeastern U.S. today as a potent low-pressure area and accompanying cold front will move over the Appalachians, then off the Mid-Atlantic coast by Saturday morning. Initially, the storm will bring a soaking of rain to most of central and southern New England, starting Friday evening. Then, as the storm edges closer, it will help channel cold air from Canada over New England, gradually converting the precipitation to a frozen variety between 2 and 6 a.m. in the Boston area on Saturday morning. After that time, there will likely be a blend of snow, sleet and freezing rain mixed with rain at times through the early afternoon, ending as some flurries. Accumulations will depend on the exact timing of the change-over, but may range up to one inch (1-3 cm) in the city.

Welcome to winter!

Weekend Outlook:

Today: Cloudy with a chance of light rain in the afternoon, becoming steadier this evening. High near 40°F (4°C).

Tonight: Moderate rain, gradually mixing with or changing to snow, sleet and freezing rain by morning. Northerly winds may gust up to 35 m.p.h. (58 k.m.h.). Low near 31°F (-1°C).

Tomorrow: A mix of snow, sleet, freezing rain and rain in the morning, tapering to showers and flurries in early afternoon. Up to 1" (1-3 cm) of slushy accumulation. High near 39°F (4°C).

Tomorrow night: Some clouds early, then clearing. Winds diminish late. Low near 28°F (-2°C).

Sunday: Mostly sunny, warmer. High near 45°F (7°C).

Monday: Mostly sunny. High near 48°F (9°C).