Frost advisory continues; breezy and chilly temps remain in DC region

The coldest outbreak of the autumn season to date is sweeping across the D.C. region, and the area won’t catch a break from the big chill until we approach the weekend.

A freeze warning remains in effect until 9 a.m. Wednesday for parts of Northern Virginia and Northern Maryland, while a frost advisory is in effect until 9 a.m. for the D.C. region.

Low pressure spinning east of Pittsburgh is producing the season’s first snow flurries in Garrett County, Maryland’s westernmost county.

More frequent snow showers will whiten the ground in that area Wednesday morning, and a few secondary roads could see minor accumulation — so travelers heading towards Pittsburgh should watch out for a sudden change in weather west of Cumberland, Maryland.

High pressure returning Wednesday night will allow the sky to clear and winds to diminish. Following a blustery day in D.C. and the suburbs, temperatures tonight will drop to their coldest yet, with 20s north and west of the Capital Beltway, and the mid 30s along and east of Interstate 95.

The widespread hard freeze will end the growing season west of I-95. Cover those flowers or bring them inside!

High pressure returning for the remainder of the week will ensure a slow warm-up to average highs for mid October early this weekend. Frost is expected again Friday morning, chiefly north and west of the city.

A dusting of snow along Interstate 68 near Grantsville, Maryland, is seen early on Oct. 19. (Courtesy MDOT)


  • Wednesday: Partly sunny, breezy and chilly. Highs in the mid 50s
  • Thursday: Partly cloudy and a little warmer. Highs upper 50s to lower 60s
  • Friday: Partly cloudy and warmer. Highs in the mid to upper 60s
  • Saturday: Mostly sunny and pleasant. Highs in the lower 70s
  • Sunday: Mostly sunny. A little warmer. Highs in the mid 70s

Current weather:

Fall foliage report:

The fall colors are just about ready to peak along the Blue Ridge through Interstate 81 and this midweek cold snap will do the trick, Merrill said. If you are looking for the right window to see the most vibrant colors of the season within a short drive of Washington, this weekend will be your best bet before the leaves begin to fall, Merrill said.

In the immediate D.C. suburbs, the cold pattern will set fall colors in motion. The weekend of Oct. 29-30 will likely be the peak season for places such as Sterling, Virginia, and Maryland’s Germantown and Westminster. Along and east of I-95 will have to wait until early November for the best color, Merrill said.

Chad Merrill

Chad Merrill is a meteorologist and digital weather content producer for WTOP. Prior to joining WTOP, Chad was a meteorologist in the private industry and television. He loves to share his passion with listeners and readers and is eager to hear from anyone who has any weather questions!

Abigail Constantino

Abigail Constantino started her journalism career writing for a local newspaper in Fairfax County, Virginia. She is a graduate of American University and The George Washington University.

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