The Washington Post

Freeze watch north and west of Washington, D.C. Friday night

Areas under a freeze watch are colored in blue (National Weather Service)

Montgomery and Loudoun counties and counties to their north and west are included in the freeze watch, effective late Friday night through Saturday morning. Temperatures are expected to dip into the upper 20s and lower 30s.

“Unprotected vegetation sensitive to freezing temperatures will be at risk” the National Weather Service cautions.

The GFS model simulates subfreezing temperatures in the moderate and deep shades of blue at 5 a.m. Saturday morning

In the District and to the southeast, a frost or freeze is not likely, with low temperatures mainly in the upper 30s to near 40 early Saturday.

In terms of the areas most at risk for freezing temperatures, I’d draw a line from Columbia to Rockville to Sterling. Locations to the north and west of that line are most likely to experience freezing temperatures.

Jason is the Washington Post’s weather editor and Capital Weather Gang's chief meteorologist. He earned a master's degree in atmospheric science, and spent 10 years as a climate change science analyst for the U.S. government. He holds the Digital Seal of Approval from the National Weather Association.

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