6:00 AM | ***Winter storm hits Mid-Atlantic region on Tuesday with biggest impact interior sections...snow, ice, rain mix in I-95 corridor...watch for AM slick spots***

6-Day forecast for the Washington, D.C. metro region

Today

Mainly sunny, breezy, cold, highs in the lower 40’s; NW winds around 5-15 mph

Tonight

Becoming mainly cloudy, cold, chance of snow in the wee hours that could mix with sleet by daybreak, watch for slick spots late, lows in the upper 20’s

Tuesday

Mainly cloudy, cold, rain possibly mixed with snow and/or sleet for awhile, watch for AM slick spots, near 40 degrees for afternoon highs

Tuesday Night             

Clearing skies, brisk, cold, low-to-mid 20’s for late night lows

Wednesday

Mainly sunny, cold, near 40 degrees

Thursday

Partly sunny, cold, lower 40’s; very cold at night with lows in the upper teens

Friday

Becoming mainly cloudy, quite cold, chance of snow or snow and ice late in the day and at night, low-to-mid 30’s

Saturday

Mainly cloudy, cold, chance of rain and/or ice, near 40 degrees

Discussion

December begins on a chilly note and it looks like much of the first half of the month will feature colder-than-normal temperatures in the eastern half of the nation. In addition, the overall pattern looks to remain quite active with a couple of winter weather threats during the next several days. High pressure will build into New England today and then retreat to the northeast on Tuesday at the same time low pressure pushes toward the Mid-Atlantic coastline. Precipitation is likely to reach the area around or just before dawn and it could be cold enough for snow in most places. As the high retreats to the northeast, enough milder ocean air will push in to produce a changeover of the snow to rain and there can be icing for awhile during the transition. Accumulations are possible before the changeover on the order of a coating to an inch in the DC metro and up to a couple of inches in some of the far northern and western suburbs. High pressure takes control of the weather for the mid-week and then a cold front arrives by Thursday night perhaps associated with a couple of snow showers. The coldest air so far pushes in on Thursday night and overnight lows could bottom out in the upper teens in some spots. After that, we’ll be watching the progression of another low pressure system to our south which could produce some snow and ice around here by the end of the week.

Meteorologist Paul Dorian
Arcfield Weather