7:00 AM | *Cold shot arrives at week's end...another cold blast by early next week*

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

Today

Mainly sunny, chilly, highs in the low-to-mid 50’s

Tonight

Mainly clear early, some clouds late, cold, lows not far from 40 degrees

Thursday

Thickening clouds, chilly, good chance for PM rain showers, mid-to-upper 50’s for afternoon highs

Thursday Night

Mainly cloudy, cold, rain likely in the evening and there is an outside chance for a few flakes to mix in in the far northern and western suburbs before the precipitation ends, low-to-mid 30’s for late night lows

Friday

Becoming mainly sunny, windy, cold, lower 40’s

Saturday

Mainly sunny, still quite cold, low-to-mid 40’s

Sunday

Partly sunny, a bit milder, breezy, low-to-mid 50’s

Monday

Mainly cloudy, windy, cold, chance of rain or snow at night, upper 40’s

Discussion

A significant cold air outbreak is headed to the Mid-Atlantic/NE US from the northern part of Canada at the end of the work week and another is coming for the early part of next week. As high pressure ridging intensifies across Alaska and western Canada, the upper-level air flow will develop in such a manner that will allow for the transport of air from way up in Canada to the central and eastern US. As the cold air pushes to the southeast late this week, moisture will push northeast along the advancing frontal boundary zone and rain is likely here later tomorrow into tomorrow night. The rain could mix with a few snowflakes well to the north and west before the precipitation ends and there will be accumulating snow from western New York State to the upper part of Maine with this influx of cold air. Next week's cold blast could bring a threat of snow to the Mid-Atlantic region and northeastern US.

Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com